Nadier's Nightblade

Whenever a token you control leaves the battlefield, each opponent loses 1 life and you gain 1 life.

Elvish Mystic

Essence Warden

Whenever another creature enters, you gain 1 life.

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Deathgreeter

Whenever another creature dies, you may gain 1 life.

Llanowar Elves

Elves of Deep Shadow

{T}: Add {B}. This creature deals 1 damage to you.

Pristine Talisman

Dina, Soul Steeper

Whenever you gain life, each opponent loses 1 life.
{1}, Sacrifice another creature: Dina gets +X/+0 until end of turn, where X is the sacrificed creature's power.