Aetherflux Reservoir - Kaladesh (KLD)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.

If you control a commander

then draw another card if the sacrificed permanent was a commander

Exile that token at the beginning of the next end step

Reckless Endeavor deals damage equal to that result to each creature

wilderness guide

Lord High Artificer enters the battlefield

• Add {R} for each card in target opponent's hand

Unearth {4}{R} ({4}{R}: Return this card from your graveyard to the battlefield

Whenever Bruse Tarl

If you cast it any time a sorcery couldn't have been cast

At the beginning of each end step

Flying Whenever a creature becomes the target of a spell or ability