Jizukiru, the Star Destroying Kaiju [BOSH-EN088] Rare Legendary Hero Decks You can only use this

You can only use this effect of "Speedroid Den-Den Daiko Duke" once per turn

nor use them as Materials for a Fusion

you can substitute this card for any 1 "Nordic" Tuner

If this card in its owner's control is destroyed by an opponent's card effect: You can add 1 "Polymerization" Spell or "Fusion" Spell from your Deck to your hand

Jizukiru, the Star Destroying Kaiju [BOSH-EN088] Rare Legendary Hero Decks You can only use thisSet: Breakers of Shadow Card type: Effect Monster Rarity: Rare Attack: 3300 Defense: 2600 You can Special Summon this card (from your hand) to your opponent's side of the field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. During either player's turn, when a card or effect is activated