Professor Oak's New Theory (101/123) (League Promo) [HeartGold & SoulSilver: Base Set]Set: HeartGold & SoulSilver: Base Set Type: Supporter Rarity: Promo

- Target club or hammer weapon attack gains +4 [Power]

it's put into the graveyard

destroy Ebon Fold: Banish a card from your hand

Set: Arcane Rising Edition: 1st Edition Finish: Rainbow Foil Type: Action Subtype: Attack Rarity: Common Class: Mechanologist Cost: 2 Power: 6 Boost

you may search your deck for a Wizard card with [Resource] cost equal to or less than the damage dealt by Lesson in Lava

Set: The Lost Art Promotion Card type: Normal Spell Rarity: Ultra Rare Send 1 monster from your Deck to the GY

where X is 6 minus the pitch value of the card revealed this way

Set: Welcome to Rathe Edition: Alpha Print Finish: Rainbow Foil Type: Action Subtype: Attack Rarity: Rare Class: Brute Cost: 2 Power: 5 As an additional cost to play Breakneck Battery

Set: Welcome to Rathe Edition: Alpha Print Finish: Regular Type: Action Subtype: Attack Rarity: Majestic Class: Guardian Cost: 7 Power: 11 Bravo Specialization (You may only have Crippling Crush in your deck if your hero is Bravo

Set: Sun & Moon: Dragon Majesty Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

and your next attack this turn gains +2 [Power]

Set: XY: Generations Type: Water Rarity: Promo Retreat cost: Colorless