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Change the Equation
Instant
uncommon
Choose one — • Counter target spell with mana value 2 or less. • Counter target red or green spell with mana value 6 or less.
Semantic Tags
A keyword ability that reduces how much mana you need to spend to cast a spell. See rule 702.41, “Affinity.”
Prevents a spell or ability from resolving.
Prevents a spell or ability from resolving.
A keyword ability that allows a spell to affect either a single target or many objects. See rule 702.96, “Overload.”
Answers an opponent's threat by destroying, exiling, bouncing, or otherwise removing a permanent or spell.
Tax or prevent spellcasting — Rule of Law, Thalia, Sphere of Resistance.
A triggered ability that can counter spells or abilities that target the permanent with ward. See rule 702.21, “Ward.”
Format Legality
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Printings (1)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| March of the Machine#50 | uncommon | · | · | · |
Related Rules
A Royal Role token is a colorless Aura Role enchantment token named Royal with enchant creature and “Enchanted creature gets +1/+1 and has ward {1}.”
One card (Golgothian Sylex) refers to permanents with a name originally printed in the Antiquities™ expansion. Those names are Amulet of Kroog, Argivian Archaeologist, Argivian Blacksmith, Argothian Pixies, Argothian Treefolk, Armageddon Clock, Artifact Blast, Artifact Possession, Artifact Ward, Ashnod’s Altar, Ashnod’s Battle Gear, Ashnod’s Transmogrant, Atog, Battering Ram, Bronze Tablet, Candelabra of Tawnos, Circle of Protection: Artifacts, Citanul Druid, Clay Statue, Clockwork Avian, Colossus of Sardia, Coral Helm, Crumble, Cursed Rack, Damping Field, Detonate, Drafna’s Restoration, Dragon Engine, Dwarven Weaponsmith, Energy Flux, Feldon’s Cane, Gaea’s Avenger, Gate to Phyrexia, Goblin Artisans, Golgothian Sylex, Grapeshot Catapult, Haunting Wind, Hurkyl’s Recall, Ivory Tower, Jalum Tome, Martyrs of Korlis, Mightstone, Millstone, Mishra’s Factory, Mishra’s War Machine, Mishra’s Workshop, Obelisk of Undoing, Onulet, Orcish Mechanics, Ornithopter, Phyrexian Gremlins, Power Artifact, Powerleech, Priest of Yawgmoth, Primal Clay, The Rack, Rakalite, Reconstruction, Reverse Polarity, Rocket Launcher, Sage of Lat-Nam, Shapeshifter, Shatterstorm, Staff of Zegon, Strip Mine, Su-Chi, Tablet of Epityr, Tawnos’s Coffin, Tawnos’s Wand, Tawnos’s Weaponry, Tetravus, Titania’s Song, Transmute Artifact, Triskelion, Urza’s Avenger, Urza’s Chalice, Urza’s Mine, Urza’s Miter, Urza’s Power Plant, Urza’s Tower, Wall of Spears, Weakstone, Xenic Poltergeist, Yawgmoth Demon, and Yotian Soldier.
If a spell has multiple instances of affinity, each of them applies.
To cloak a card, turn it face down. It becomes a 2/2 face-down creature card with ward {2}, no name, no subtypes, and no mana cost. Put that card onto the battlefield face down. That permanent is a cloaked permanent for as long as it remains face down. The effect defining its characteristics works while the card is face down and ends when it’s turned face up.
Ward
Ward is a triggered ability. Ward [cost] means “Whenever this permanent becomes the target of a spell or ability an opponent controls, counter that spell or ability unless that player pays [cost].”
Some ward abilities include an X in their cost and state what X is equal to. This value is determined at the time the ability resolves, not locked in as the ability triggers.
Affinity
Rulings
If a spell has {X} in its mana cost, use the value chosen for X when calculating that spell’s mana value.