Junk Golem [Odyssey] Fungus Beast You can only use each

You can only use each of the following effects of "Cyberdark Cannon" once per turn

The air was filled with the cracks and snaps of flesh hardening as the new sliver joined the battle

Set: Innistrad Type: Sorcery Rarity: Rare Cost: {8}{R} This spell costs {1} less to cast for each creature on the battlefield

(Additions now subtract

Junk Golem [Odyssey] Fungus Beast You can only use eachSet: Odyssey Type: Artifact Creature Golem Rarity: Rare Cost: {4} Junk Golem enters the battlefield with three +1 +1 counters on it. At the beginning of your upkeep, sacrifice Junk Golem unless you remove a +1 +1 counter from it. {1}, Discard a card: Put a +1 +1 counter on Junk Golem.