Ezreal

Fizz costs three Energy and one Chaos Power, then can play a spell from your trash with printed Energy cost three or less while ignoring its base Energy. Wages of Pain adds three battlefield damage and exhausted Gold without another Energy payment. Stupefy can supply another card when damage is not what you need. The spell Fizz reused is recycled into your Main Deck afterward, so you need another useful spell in the trash for the next Fizz. Power and additional costs still apply. Fizz into Star-Crossed costs three Energy and two Chaos Power and can return Fizz himself alongside an enemy, leaving him in hand rather than on the board.

Two separate spells or unit abilities that each choose an enemy unit, such as Stupefy and Gust, meet the Legend's condition cleanly. With Prodigy present, repeated Bellows from hand costs either two Energy and one Mind Power or one Energy and two Mind Power. Choose the payment that leaves resources for your next play. Bellows is an Action, not a Reaction to a spell already on the chain. Once you have made two qualifying choices, the ready Legend can exhaust as a Reaction to draw. It can do that on the opponent's turn too, but does not ready at the start of every player's turn. A Gear's ability, an effect that chooses a player, and Thousand-Tailed Watcher's untargeted reduction do not count. Do not spend a second spell just to unlock the draw when saving it would protect the next point.