Plague Wolf [FOTB-EN065] Secret Rare U-MON037-RF You can only use this

You can only use this effect of "Speedroid Terrortop" once per turn

By discarting 1 card from your hand

except "Trickstar" monsters (even if this card leaves the field)

Set: Cyberdark Impact Card type: Effect Monster Rarity: Ultimate Rare Attack: 1500 Defense: 1500 Once per turn

Set: History Pack 1 Finish: Regular Type: Instant Rarity: Majestic Class: Generic Cost: 1 Choose 2

Plague Wolf [FOTB-EN065] Secret Rare U-MON037-RF You can only use thisSet: Force of the Breaker Card type: Effect Monster Rarity: Secret Rare Attack: 1000 Defense: 1000 Once per turn, you can change this card's ATK to twice its original ATK. If you do this, destroy this card during the End Phase.