>>29215608>Burn would probably secure the killAlright, I'll take your bait.
>252+ SpA Life Orb Greninja Steam Eruption vs. 252 HP / 136+ SpD Eviolite Porygon2: 121-144 (32.3 - 38.5%) -- 97.4% chance to 3HKOAdding 12.5% burn damage per turn, assuming burn on turn 1, so 25% over two turns, so equivalent to 3 Layers of spikes:
252+ SpA Life Orb Greninja Steam Eruption vs. 252 HP / 136+ SpD Eviolite Porygon2: 121-144 (32.3 - 38.5%) -- 4.7% chance to 2HKO after 3 layers of Spikes
4.7% < 50%
It is possible, with two maximum rolls, but it certainly isn't probable
