The most broken item combination in Megabonk. Kevin triggers self-damage, Mirror grants invincibility frames on damage. High attack speed chains i-frames together creating permanent invulnerability.
This combo was so broken it forced developer vedinad to nerf Kevin in patches 1.0.7 and 1.0.12, and reset the entire leaderboard. Post-nerf it still provides elite survivability but no longer grants 100% permanent invulnerability.
Kevin deals self-damage that triggers on-hit effects. The key is that this self-damage activates Mirror's invulnerability frames. With high attack speed, you constantly trigger Kevin's 25% chance, which constantly triggers Mirror's i-frames.
Creates a clone that mirrors your movements and inherits ALL your items. More importantly, Mirror grants brief invulnerability frames (i-frames) whenever you take damage. This is the key to the entire combo.
The Real Mechanism (Not Regeneration!):
1. Kevin has 25% chance to self-damage on every attack
2. Every self-damage proc triggers Mirror's invulnerability window
3. High attack speed means constant Kevin procs
4. Constant Kevin procs = overlapping invulnerability frames
5. Overlapping i-frames = permanent immunity to damage
Result: With sufficient attack speed, you can stand motionless in the Final Swarm completely surrounded by enemies while taking zero damage. Your kill count skyrockets while you literally do nothing.
This combo doesn't rely on character passives - it's pure item synergy. Best characters:
Items that complement the invincibility combo
Creates a damage field around you. Since you're immortal, Aura provides passive DPS while you stand in enemy hordes. Part of the "Holy Trinity" strategy when combined with Kevin + Mirror. Unlock: Survive Final Swarm for 2 minutes without damage.
Spawns more enemies but grants better XP and loot. Since you can't die anyway, the downside is irrelevant. Core part of "Holy Trinity" meta strategy. Unlock: Beat a Stage Boss in under 5 minutes.
Grants +25 Max HP. More HP means a bigger buffer for Kevin's self-damage to work with. Not critical but provides safety margin for the i-frame chaining to establish.
ANY items that boost attack speed are crucial. Higher attack speed = more Kevin procs = more overlapping i-frames. This is what makes the combo truly immortal.
+7% XP gain per level (max level 40 = +280% total). Part of "Holy Trinity" strategy. Reach max power faster to dominate late game.
+6.5% Luck for better drops and more crits. Since you never die, you have infinite time to farm items. Luck accelerates your power growth.
Priority Goals:
Once You Have Kevin + Mirror:
"Gameplay":
Kevin has 25% chance on-hit to deal damage to yourself. This damage cannot kill you. The key is that self-damage counts as "taking damage" which triggers Mirror's invulnerability.
Mirror grants brief invulnerability frames whenever you take damage. These i-frames make you immune to ALL damage for a short window. The clone is a bonus.
High attack speed → Frequent Kevin procs → Frequent self-damage → Constant Mirror i-frame activation → Overlapping invulnerability windows → Near-permanent immunity. Pre-nerf this was perfect; post-nerf there are small gaps but it's still elite-tier survivability.
Experience near-invincibility with the most overpowered item combination in Megabonk. Post-nerf it's still elite-tier - just not literally AFK-able anymore.
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