Constellation — Whenever Underworld Coinsmith or another enchantment enters the battlefield under your control, you gain 1 life.

{W}{B}, Pay 1 life: Each opponent loses 1 life.

Flying

Heroic — Whenever you cast a spell that targets War-Wing Siren, put a +1/+1 counter on War-Wing Siren.

Constellation — Whenever Whitewater Naiads or another enchantment enters the battlefield under your control, target creature can’t be blocked this turn.

{5}{R}{R}: Monstrosity 1. (If this creature isn’t monstrous, put a +1/+1 counter on it and it becomes monstrous.)

When Wildfire Cerberus becomes monstrous, it deals 2 damage to each opponent and each creature they control.

You control target player during that player’s next turn. Exile Worst Fears. (You see all cards that player could see and make all decisions for the player.)