Teridax, Universal Usurper

Mutable Form - Teridax gains +2/+0 and flying
until end of turn if you pay {4}.

Plans Within Plans - When Teridax leaves the battlefield, create a 0/5 Makuta Essence Token with "During your upkeep, if you control creatures with
total power 7 or more, exile this token and return Teridax, Universal Usurper to the battlefield with
three +1/+1 counters on it."

Dark Science {1}: Draw a card (Sorcery).