Any deck that makes proper use of these counters enjoys the monarch because they have a ton of creatures to defend or secure the monarchy
Since storm can usually aim to be one of the fastest and most explosive decks at the table, there tends to be a bias towards effects which simply convert cards into mana or mana into cards since thats the easiest way to ensure they can chain together in whatever sequence you draw them
If it's something on the battlefield, it's an elf permanent instead
Doorkeeper Thrull Doorkeeper Thrull is a cheap stax piece with flash
Chaos: Whenever you roll Chaos, until a player planeswalks., whenever a creature you control dies, each opponent sacrifices a creature
Certainly, when the card type was first properly unveiled, after a major tease from Wizards of the Coast, some were sceptical