Angler Drake

Angler Drake is legal in Commander, Legacy, Modern, Pioneer, Vintage, and Oathbreaker, but it sees essentially no play in any competitive 60-card format — six mana bounce effects don't survive in environments where the game is often over by turn four. Commander is where Angler Drake has its entire case: the enters-the-battlefield trigger scales up in value whenever you're copying creatures, blinking them, or building around a creature-type payoff that cares about unique subtypes. Outside of those specific synergy contexts, it's outclassed by cheaper bounce spells and more efficient six-drop threats.