zariel mtg card Treasure // Zariel, Archduke of Avernus Emblem Creatures you control get +1/+0 and gain haste until end of turn 1x Zariel, Archduke of Avernus

Then if you're the monarch, this enchantment deals X damage to each opponent, where X is the number of creatures you control

For decks aiming to maintain a steady crime spree turn after turn, these sorts of enablers will pay for themselves but you need a fairly high density of high-impact payoffs to justify them

There may even be room for the card in older formats

The winner of that game gets to keep the other player's contribution

Repeat this process with some other card in play to draw as many cards as you like

Emerald can also be aggro itself, especially with the popular Legendary card, Beast: Relentless, which readies every time an enemy character is damaged