LinManuelMiranda,HeroScholar

Double Strike, Lifelink, Prowess
Whenever you cast a spell, or trigger or activate an ability, reduce their mana cost by {X}, where X is the number of cards played and/or with abilities that rhymed with each other this turn. (If 2 cards rhymed, X= 2; if 2 pairs of cards had 2 different rhymes, X= 4; if 3 cards rhymed, X= 2x3 for the three pairs of rhymes so X= 6.)