Whenever you cast a spell, you get an amount of (energy counters) equal to the amount of mana spent to cast that spell. , Pay fifty : Draw seven cards. You may cast any number of spells from your hand without paying their mana costs.
As Kaladesh became Avishkar, aether finally started flowing freely to all.
(energy counters) equal to the amount of mana spent to cast that spell.
, Pay fifty 
