Gamora, Daughter of Thanos

Partner with Nebula, Daughter of Thanos (When this creature enters the battlefield, target player may
put Nebula into their hand from their library, then shuffle.)

While Nebula, Daughter of Thanos is on the field, gain first strike and "When Gamora, Daughter of Thanos dies for the first time, bring her back during your next upkeep with +1/+1 and vigilance."