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.

Whenever you're dealt damage, put that many charge counters on Sun Droplet. At the beginning of each upkeep, you may remove a charge counter from Sun Droplet. If you do, you gain 1 life.

Flying, lifelink When Aetherborn Marauder enters the battlefield, move any number of +1/+1 counters from other permanents you control onto Aetherborn Marauder.

Lifelink, haste

Flying, lifelink, hexproof from planeswalkers Boast — {1}{B}, Sacrifice a creature: Each opponent sacrifices a creature or planeswalker. (Activate only if this creature attacked this turn and only once each turn.)

Whenever another creature enters the battlefield, you gain 1 life.

{X}{B/P}: Remove up to X counters from target permanent. For each counter removed this way, Hex Parasite gets +1/+0 until end of turn. ({B/P} can be paid with either {B} or 2 life.)

Lifelink Equipped creature has lifelink. Reconfigure {4} ({4}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Deathtouch, lifelink {T}: Add one mana of any color.

Flying, deathtouch, lifelink

{B}, Pay 2 life: Draw a card.

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

({T}: Add {G}.)

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.