Tezzeret the Seeker (Borderless) [Secret Lair Drop Series] Dinosaur Whenever an opponent casts an

Whenever an opponent casts an artifact

They can be used as-is

- 1 beast skull (in 2 components)

Set: 30th Anniversary Edition Type: Creature — Giant Rarity: Uncommon Cost: {2}{R}{R} {T}: Target creature you control with toughness less than Stone Giant's power gains flying until end of turn

But usually it's better to make a wall out of the wood and let trouble do the knocking

Tezzeret the Seeker (Borderless) [Secret Lair Drop Series] Dinosaur Whenever an opponent casts anSet: Secret Lair Drop Series Type: Legendary Planeswalker Tezzeret Rarity: Mythic Cost: {3}{U}{U} +1: Untap up to two target artifacts. X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle. 5: Artifacts you control become artifact creatures with base power and toughness 5 5 until end of turn.