According to current penalty guidelines, this is a deck/decklist problem, which means you would have to replace the fake with a legal copy of that card (or basic land) and incur a game loss
You can only activate 1 "Downbeat" per turn
This Supporter, when used, allows you to select up to two Pokemon, and attach a Darkness Energy from your deck to each, Poisoning the Active Pokemon if any Energy is attached to them
(It deals both first-strike and regular combat damage.) Instant Color tag templates(None) Ensnare You may return two Islands you control to their owner's hand rather than pay this spell's mana cost
Players want the big case tournaments back, and eventually, we will bring them back, David explained, but they dont want to be the reason that Duelist gather in a large group, not yet anyway