M:tG card similarity search
3 · Artifact
When Threefold Signal enters the battlefield, scry 3. Each spell you cast that's exactly three colors has replicate {3}. (When you cast it, copy it for each time you paid its replicate cost. You may choose new targets for the copies. A copy of a permanent spell becomes a token.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Sol Grail | 3 | Artifact | As Sol Grail enters the battlefield, choose a color. {T}: Add one mana of the chosen color. |
| Draconic Lore | 5U | Instant | This spell costs {2} less to cast if you control a Dragon. Draw three cards. |
| Invasion of Vryn | 3U | Battle — Siege | (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Vryn enters the battlefield, draw three cards, then discard a card. |
| Ethersworn Canonist | 1W | Artifact Creature — Human Cleric | Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells. 2/2 |
| The Seedcore | Land — Sphere | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast Phyrexian creature spells. Corrupted — {T}: Target 1/1 creature gets +2/+1 until end of turn. Activate only if an opponent has three or more poison counters. | |
| The Grey Havens | Legendary Land | When The Grey Havens enters the battlefield, scry 1. {T}: Add {C}. {T}: Add one mana of any color among legendary creature cards in your graveyard. | |
| Stoic Sphinx | 2UU | Creature — Sphinx | Flash Flying Stoic Sphinx has hexproof as long as you haven't cast a spell this turn. 5/3 |
| Crumbling Vestige | Land | Crumbling Vestige enters the battlefield tapped. When Crumbling Vestige enters the battlefield, add one mana of any color. {T}: Add {C}. ({C} represents colorless mana.) | |
| Norn's Fetchling | 1W | Creature — Phyrexian Insect | Toxic 1 Corrupted — When Norn's Fetchling enters the battlefield, conjure a card named Plains into your hand. If an opponent has three or more poison counters, you may seek a nonland card instead. 1/1 |
| Prismwake Merrow | 2U | Creature — Merfolk Wizard | Flash When Prismwake Merrow enters the battlefield, target permanent becomes the color or colors of your choice until end of turn. 2/1 |