jeska, thrice reborn enters the battlefield with a loyalty counter on it for each time you've cast a commander from the command zone this game. +0: choose target creature. until your next turn, if that creature would deal combat damage to one of your opponents, it deals triple that damage to that player instead. −x: jeska, thrice reborn deals x damage to each of up to three targets. jeska, thrice reborn can be your commander. partner (you can have two commanders if both have partner.)