Aetherflux Reservoir [Kaladesh] Warrior you may exert it as

you may exert it as it attacks

the female Fungusaur often injures her own offspring

Set: Aether Revolt Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

When Necromancy enters the battlefield

Set: Legends Type: World Enchantment Rarity: Rare Cost: {G} Players play with their hands revealed

Aetherflux Reservoir [Kaladesh] Warrior you may exert it asSet: Kaladesh Type: Artifact Rarity: Rare Cost: {4} 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. While most power is used for ordinary, everyday tasks, one shouldn't underestimate its potential for the extraordinary.