Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Horizon Stone

5 · Artifact

If you would lose unspent mana, that mana becomes colorless instead.

Similar cards

Color identity:
NameManaTypeText
Comeuppance 3WInstant Prevent all damage that would be dealt to you and planeswalkers you control this turn by sources you don't control. If damage from a creature source is prevented this way, Comeuppance deals that much damage to that creature. If damage from a noncreature source is prevented this way, Comeuppance deals that much damage to the source's controller.
Lim-Dûl's Paladin 2BRCreature — Human Knight Trample At the beginning of your upkeep, you may discard a card. If you don't, sacrifice Lim-Dûl's Paladin and draw a card. Whenever Lim-Dûl's Paladin becomes blocked, it gets +6/+3 until end of turn. Whenever Lim-Dûl's Paladin attacks and isn't blocked, it assigns no combat damage this turn and defending player loses 4 life. 0/3
Pox BBBSorcery Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control, then sacrifices a third of the lands they control. Round up each time.
Circle of Protection: Art 1WEnchantment As Circle of Protection: Art enters the battlefield, choose an artist. {1}{W}: The next time a source of your choice with art by the chosen artist would deal damage to you this turn, prevent that damage. {1}{W}: Return Circle of Protection: Art to its owner's hand.
Megaflora Jungle Plane — Gargantikar Each creature with mana value 2 or less gets +2/+2. Whenever chaos ensues, create a 1/1 green Insect creature token with flying named Butterfly.
Training Grounds UEnchantment Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
Spiritmonger 3BGCreature — Beast Whenever Spiritmonger deals damage to a creature, put a +1/+1 counter on Spiritmonger. {B}: Regenerate Spiritmonger. {G}: Spiritmonger becomes the color of your choice until end of turn. 6/6
Rise and Shine 1USorcery Target noncreature artifact you control becomes a 0/0 artifact creature. Put four +1/+1 counters on each artifact that became a creature this way. Overload {4}{U}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Hazduhr the Abbot 3WWLegendary Creature — Human Cleric {X}, {T}: The next X damage that would be dealt this turn to target white creature you control is dealt to Hazduhr the Abbot instead. 2/5
Hotel of Fears Plane — Spacecraft At the beginning of your upkeep, exile the top card of your library. You lose life equal to its mana value. You may play that card this turn. Praise Him — Whenever chaos ensues, choose a color. Put X +1/+1 counters on target creature you control, where X is your devotion to that color. Then sacrifice another creature. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
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