poppy pokemon card #193 - Obsidian Flames - Supporter, Trainer - 2024 Keep away from children Poppy Trainer Cards · Whatnot:

For example, it can't be used during the resolution of an ability that says "Counter target spell unless its controller pays 3." If an artifact you control has a mana ability with T in the cost, activating that ability while casting a spell with improvise will result in the artifact being tapped when you pay the spell's costs

If it's double faced, the creature with nightbound will transform

Plus, a well-timed counterspell will stop it from becoming a problem in the first place

Watermark: Conspiracy Seal Illustrated by John Avon Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp

You might think, oh, well its impossible to play that many cards in a single turn, but youd be wrong