Donyoribo @Ignister (IGAS-EN007) [Ignition Assault]

During damage calculation, if your "@Ignister" monster is attacked (Quick Effect): You can discard this card; you take no battle damage from that battle. When an "@Ignister" monster effect, or "A.I." Spell/Trap Card or effect, is activated that inflicts damage to your opponent, even during the Damage Step (Quick Effect): You can banish this card from your GY; double that damage inflicted to your opponent. You can only use each effect of "Donyoribo @Ignister" once per turn.