Your theme just isn’t complete without a Kuriboh Ersatz.

IGAS-JP007 ドンヨリボー＠イグニスター Donyoribo @Ignister
Level 1 DARK Cyberse Effect Monster
ATK 300
DEF 0
You can only use each effect of this card’s name once per turn.
(1) During damage calculation when your “@Ignister” monster is attacked: You can discard this card; you take no damage from that battle.
(2) When an “@Ignister” monster effect, or an “A.I.” Spell/Trap effect, that inflicts damage to your opponent is activated (even during the Damage Step) (Quick Effect): You can banish this card from the GY; Double the damage your opponent takes from it.