Thoughtseize (Invocation) [Amonkhet Invocations] Plant / Synchro / Effect Whenever Questing Beast deals combat

Whenever Questing Beast deals combat damage to an opponent

but I knew it weren't no ordinary hunk o' rock

Set: Dark Revelation Volume 2 Card type: Continuous Spell Rarity: Rare All face-up Level 4 or higher monsters on the field are changed to Defense Position and remain in Defense Position as long as this card is active

Set: Gym Challenge Unlimited Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

Thoughtseize (Invocation) [Amonkhet Invocations] Plant / Synchro / Effect Whenever Questing Beast deals combatSet: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {B} Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.