Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.
Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.
{2}{W}{W}
Ajani Goldmane
Legendary Planeswalker - Ajani
+1: You gain 2 life.
-1: Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn.
-6: Create a white Avatar creature token. It has "This creature's power and toughness are each equal to your life total."
L:
4
{1}{W}
Ajani's Pridemate
Creature - Cat Soldier
Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate.
2 /
2
{1}{W}{W}
Ajani, Caller of the Pride
Legendary Planeswalker - Ajani
+1: Put a +1/+1 counter on up to one target creature.
-3: Target creature gains flying and double strike until end of turn.
-8: Create X 2/2 white Cat creature tokens, where X is your life total.
L:
4
{W}
Authority of the Consuls
Enchantment
Creatures your opponents control enter the battlefield tapped.
Whenever a creature enters the battlefield under an opponent's control, you gain 1 life.
{1}{W}
Lone Rider
Creature - Human Knight
First strike, lifelink
At the beginning of the end step, if you gained 3 or more life this turn, transform Lone Rider.
1 /
1
--
It That Rides as One
Creature - Eldrazi Horror
First strike, trample, lifelink
1 /
1
{W}
Martyr of Sands
Creature - Human Cleric
{1}, Reveal X white cards from your hand, Sacrifice Martyr of Sands: You gain three times X life.
1 /
1
{W}
Mother of Runes
Creature - Human Cleric
{T}: Target creature you control gains protection from the color of your choice until end of turn.
1 /
1
{1}{W}
Ordeal of Heliod
Enchantment - Aura
Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Heliod.
When you sacrifice Ordeal of Heliod, you gain 10 life.
{3}{W}
Rhox Faithmender
Creature - Rhino Monk
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
If you would gain life, you gain twice that much life instead.
1 /
5
{W}
Soul Warden
Creature - Human Cleric
Whenever another creature enters the battlefield, you gain 1 life.
1 /
1
{W}
Soul's Attendant
Creature - Human Cleric
Whenever another creature enters the battlefield, you may gain 1 life.
1 /
1
{1}{W}
Squadron Hawk
Creature - Bird
Flying
When Squadron Hawk enters the battlefield, you may search your library for up to three cards named Squadron Hawk, reveal them, put them into your hand, then shuffle.
1 /
1
{1}{W}
Suture Priest
Creature - Phyrexian Cleric
Whenever another creature enters the battlefield under your control, you may gain 1 life.
Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.