Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Assert Authority

5UU · Instant

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Similar cards

Color identity:
NameManaTypeText
Hoarding Recluse 3GCreature — Spider Reach, deathtouch When Hoarding Recluse dies, put up to one other target card from a graveyard on the bottom of its owner's library. 2/3
Herald of War 3WWCreature — Angel Flying Whenever Herald of War attacks, put a +1/+1 counter on it. Angel spells and Human spells you cast cost {1} less to cast for each +1/+1 counter on Herald of War. 3/3
Ghostly Flicker 2UInstant Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.
Hunter's Mark 3GInstant This spell costs {3} less to cast if it targets a blue permanent you don't control. This spell can't be countered. Target creature you control gets +1/+1 until end of turn. Then it deals damage equal to its power to target creature or planeswalker you don't control.
Reincarnation 1GGInstant Choose target creature. When that creature dies this turn, return a creature card from its owner's graveyard to the battlefield under the control of that creature's owner.
Reduce to Dreams 3UUSorcery Return all artifacts and enchantments to their owners' hands.
Spike Drone GCreature — Spike Drone Spike Drone enters the battlefield with a +1/+1 counter on it. {2}, Remove a +1/+1 counter from Spike Drone: Put a +1/+1 counter on target creature. 0/0
Wickerbough Elder 3GCreature — Treefolk Shaman Wickerbough Elder enters the battlefield with a -1/-1 counter on it. {G}, Remove a -1/-1 counter from Wickerbough Elder: Destroy target artifact or enchantment. 4/4
Treebeard, Gracious Host 2GWLegendary Creature — Treefolk Trample, ward {2} When Treebeard, Gracious Host enters the battlefield, create two Food tokens. Whenever you gain life, put that many +1/+1 counters on target Halfling or Treefolk. 0/5
Boreal Outrider 2GSnow Creature — Elf Warrior Whenever you cast a creature spell, if {S} of any of that spell's colors was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it. ({S} is mana from a snow source.) 3/2
Page 157