Aethermage's Touch [Dissension] Amonkhet Prerelease Promos You can only activate 1

You can only activate 1 "Battle Fusion" per turn

I've yet to see a spider without an appetite

That player or that planeswalker's controller discards seven cards

copy that ability

{T}: Add {B} for each basic Swamp you control

Aethermage's Touch [Dissension] Amonkhet Prerelease Promos You can only activate 1Set: Dissension Type: Instant Rarity: Rare Cost: {2}{W}{U} Reveal the top four cards of your library. You may put a creature card from among them onto the battlefield. It gains "At the beginning of your end step, return this creature to its owner's hand." Then put the rest of the cards revealed this way on the bottom of your library in any order.