Fyndhorn Elves

Elves of Deep Shadow

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

Betor, Ancestor's Voice

Flying, lifelink
At the beginning of your end step, put a number of +1/+1 counters on up to one other target creature you control equal to the amount of life you gained this turn. Return up to one target creature card with mana value less than or equal to the amount of life you lost this turn from your graveyard to the battlefield.

Elvish Mystic

Boreal Druid

Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Delighted Halfling

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

Llanowar Elves

Soul Warden

Whenever another creature enters, you gain 1 life.

Birds of Paradise

Avacyn's Pilgrim

Essence Warden

Hinterland Sanctifier

Whenever another creature you control enters, you gain 1 life.