mtg lifelink cards Rules Text: Creatures you control have lifelink, 5 Lifelink - Magic 2012 (M12):

Also cards that grant an unlimited hand size like Nezahal, Primal Tide, Thought Vessel, Decanter of Endless Water, Wizard Class and the good old Reliquary Tower

Dolores Madrigal Within Earshots ability can be helpful, and Charlotte La Bouff Mardi Gras Princess is good for those trades when youll use Challenger or a strength effect the next turn

And as mentioned at the beginning of our write up, Spreading Seas

Squee, the Immortal Few people play Squee, the Immortal for anything but Food Chain combo, but that merits its own notation for this undying goblin

though of course theres generally nothing stopping you from using these cards in your deck, you wouldnt expect to see cards from these boosters in the wild, as theyre generally just variants of existing cards that are much cheaper to acquire, and intended for repeated handling