The Blood Strike Seven Deadly Sins Event runs April 3 to May 3, 2026 — and it's genuinely one of the more generous collab events the game has run. Free players can walk away with four weapon skins (QBZ95, Kar98k, AK47, M700), multiple Playpal skins, avatars, and frames without spending a single Gold. The catch: you're managing several parallel task tracks with different deadlines, and missing one window means missing a permanent skin.
Here's everything you need, organized so you don't drop the ball.
Quick Overview & Full Event Timeline
This is a full anime crossover with The Seven Deadly Sins — Meliodas, Elizabeth, Hawk. One month, multiple simultaneous reward tracks.
One thing most guides don't flag: April 17–19 is a three-day overlap between both invite waves. If you have a limited pool of friends to recruit, time your push to that window — a single invite effort can contribute to both the AK47 and M700 unlock tracks simultaneously.
All Free Rewards — Complete Breakdown
Four weapon skins, free. That's not typical for Blood Strike collab events, where the best cosmetics usually sit behind gacha. The trade-off is active task management across multiple tracks.
Login Rewards (April 3 – May 3)
Kar98k – Double Bow Harlit
Avatar – Hawk
Crossover Avatar Frame
You don't need consecutive logins — rewards accumulate over the full month. But don't wait until the last week. Tiers likely unlock progressively, so starting late means missing early-tier drops.
Friend Invite Rewards — Two Windows
The most time-sensitive track. Miss the deadline, miss the skin.
Wave 1 (April 6–19): AK47 – Sacred Axe Rhitta
Wave 2 (April 17 – May 3): M700 – Elizabeth
If you're recruiting friends who haven't downloaded Blood Strike yet, the April 17–19 overlap is your most efficient window.
Gallery Tasks (April 13–29)
Sixteen days. The shortest window of any free track — and it offers the most rewards per track:
Playpal – Second Form Guardian
Avatar – Meliodas
Crossover Frame
Crossover Title
Start on April 13. Waiting until April 25 leaves you fewer than five days to complete what's likely a multi-step progression.
Team-Up Tasks (April 20 – May 3)
Playpal – Hawk
Avatar – Elizabeth
Two weeks is workable, but "team-up" tasks require coordinated squad play — not solo queuing. Line up your regular squad before April 20.
QBZ95 – Coffin of Eternal Darkness
Tied to general event participation, likely through a combination of the above tasks or a dedicated milestone. Don't assume passive login counts — actively play Sin Mark Duel and complete tasks to hit the threshold.
F2P Priority Order
Full Cosmetics List
Free (No Spending Required)
Premium / Gacha
Will These Skins Return?
Almost certainly not. Licensed anime collab cosmetics are typically one-event-only — the IP agreements that make crossovers possible usually restrict re-releases. Treat the free weapon skins and gacha character skins as a single window. If you want LUCIAN – Meliodas or EMMA – Elizabeth, this event is it.
Sin Mark Duel Mode: How It Works
The dedicated collab mode built around Crest Stone Pillars scattered across the map. Interact with a pillar, gain a Crest Ability — a combat buff strong enough to meaningfully shift engagements. Think of it as a hybrid BR with objective-control layered on top. Pillars are the power currency of this mode; they'll be contested.
What's Confirmed vs. Unknown
Confirmed:
Crest Stone Pillars exist on the map
Interacting grants Crest Abilities
Abilities buff you to help defeat opponents
Mode is called Sin Mark Duel
Not yet detailed officially:
Specific ability effects per pillar type
Whether Sin Marks stack between interactions
Ranking reward structure
Ranked vs. casual availability
Community coverage is sparse at early launch. Check official Blood Strike social channels and the in-game event page as more players engage with the mode.
Practical Strategy
Get to a pillar first. Crest Abilities are the mode's advantage — reaching one before opponents gives your squad a buff edge in the opening engagement. These aren't optional objectives.
Don't tunnel on a contested pillar. If one is heavily fought over, rotating to a less-defended pillar often nets you a Crest Ability faster than winning the fight for the obvious one.
Use abilities aggressively. They're designed to help you win fights. Don't hoard them waiting for a perfect moment — activate and use them in engagements.
Coordinate pillar timing with your squad. Designate one player to call pillar positions while others hold positioning. Hitting multiple pillars in sequence maintains a buff advantage throughout the match.
Crest Abilities are match-specific — they don't carry over between sessions. Each match starts fresh.
The Paid Track: Honest Assessment
The top-up event runs April 3 – May 3 and grants 20 Collab Stash Vouchers + 20 Lucky Chests for qualifying top-ups. Lucky Spin drops LUCIAN – Meliodas and Playpal – Wild from April 3 onward.
F2P players: The free track is strong on its own — four weapon skins, three Playpal skins, three avatars, two frames, a title. The paid track adds gacha access to character skins and two more weapon skins. You won't miss gameplay-relevant content by staying free, just cosmetic prestige.
Moderate spenders: The 20 Lucky Chests represent reasonable value if you're specifically targeting LUCIAN – Meliodas. Collab character skins from licensed events don't return. If Meliodas is your target, commit now.
Gacha collectors: The limited pool (M4A1 Demon, Galil Elizabeth, LUCIAN Meliodas, EMMA Elizabeth) is cohesive and themed. The paid track completes what the free track starts.
If you're planning to top up, getting your Gold through a Blood Strike top up discount via BitTopup stretches your budget further — relevant if you're targeting multiple lucky spin pulls before May 3. A Blood Strike cheap recharge through BitTopup can make the difference between getting LUCIAN – Meliodas before the event closes or not.
What Most Event Guides Get Wrong
The invite overlap window is underreported. April 17–19 is three days where one invite push can contribute to both the AK47 and M700 tracks. If your recruitable friends are limited, this timing matters.
Gallery Tasks have the harshest deadline with the most rewards. Sixteen days, four items. Players who focus on login rewards and ignore gallery tasks until late April will miss a Playpal, Avatar, Frame, and Title in a single oversight.
There is no Sin Token shop. Community posts reference Sin Tokens and an event shop based on assumptions from past events. Based on all available official sources, this event has no token-based shop system. Rewards are tied directly to task completions. Don't hold off on tasks waiting for a shop that doesn't exist.
The QBZ95 skin requires active participation. It's tied to general event engagement, not passive login. Play Sin Mark Duel and complete tasks — don't assume you've earned it automatically.
Frequently Asked Questions
Can I still get all free rewards if I start late? Depends how late. Login rewards accumulate over the month, so mid-April starts are workable — but you'll miss some daily accumulation. The AK47 (Wave 1 invite deadline: April 19) is the most at-risk reward for late starters. Gallery Tasks (April 13–29) also have a hard cutoff. Starting after April 20? Prioritize Wave 2 invites (M700) and Team-Up Tasks immediately.
Will Seven Deadly Sins skins return to Blood Strike? Almost certainly not. Licensed anime collab cosmetics are typically one-event-only. Historical precedent across similar mobile BR games strongly supports this. No official confirmation either way, but treat everything here as permanently limited.
Do Crest Abilities carry over between matches? No. They're match-specific buffs from Crest Stone Pillars. Each match starts fresh.
Is Sin Mark Duel available in ranked play? Official sources don't specify. Based on how Blood Strike typically handles event-exclusive modes, it's likely a separate casual queue. Check the in-game mode selection screen.
What happens to incomplete tasks when the event ends? Everything expires at May 3 close. No grace period, no post-event claiming. Complete tasks and actively claim rewards in the event menu — completion alone doesn't deliver the item.
Is the Lucky Spin worth it for F2P players? For strict F2P, no. The free track already delivers substantial cosmetics. The Lucky Spin is a paid gacha system without a disclosed pity rate in current sources. Complete all free tracks first before considering any spin investment.
Final Checklist
Logging in daily from April 3 (Kar98k + Avatar Hawk + Frame)
Friend invites sent before April 19 (AK47 – Sacred Axe Rhitta)
Gallery Tasks started and completed before April 29 (4 rewards)
Friend invites pushed April 17–May 3 (M700 – Elizabeth)
Team-Up Tasks completed before May 3 (Playpal Hawk + Avatar Elizabeth)
Sin Mark Duel played actively (QBZ95 + Playpal Oslo)
All rewards claimed manually in the event menu
Set reminders for April 13 (Gallery Tasks open) and April 19 (Wave 1 invite deadline). Those are the two dates that catch players off guard most often. Everything else has breathing room — those two don't.