Nyx-Fleece Ram

At the beginning of your upkeep, you gain 1 life.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
{4}{W}: Anointed Chorister gets +3/+3 until end of turn.

Whenever Leonin Warleader attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.

Lifelink
{4}: Exchange your life total with Evra, Halcyon Witness's power.

Enchant creature
Enchanted creature is legendary, gets +1/+1, and has flying, vigilance, and lifelink.

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.