M:tG card similarity search
3UU · 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 Arcavios enters the battlefield, search your library, graveyard, and/or outside the game for an instant or sorcery card you own, reveal it, and put it into your hand. If you search your library this way, shuffle.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mentor of Evos Isle | 2U | Creature — Bird Wizard | Flying When Mentor of Evos Isle enters the battlefield, choose a creature card in your hand. It perpetually gains flying. 2/1 |
| Mercenary Informer | 2W | Creature — Human Rebel Mercenary | Mercenary Informer can't be the target of black spells or abilities from black sources. {2}{W}: Put target nontoken Mercenary on the bottom of its owner's library. 2/1 |
| Handcuffs | 3BB | Enchantment | As Handcuffs enters the battlefield, choose a player. When the chosen player's hands aren't touching each other, sacrifice Handcuffs and that player sacrifices three permanents. |
| Silt Crawler | 2G | Creature — Beast | When Silt Crawler enters the battlefield, tap all lands you control. 3/3 |
| Breaching Leviathan | 7UU | Creature — Leviathan | When Breaching Leviathan enters the battlefield, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps. 9/9 |
| Coldsteel Heart | 2 | Snow Artifact | Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color. |
| Shimmerdrift Vale | Snow Land | Shimmerdrift Vale enters the battlefield tapped. As Shimmerdrift Vale enters the battlefield, choose a color. {T}: Add one mana of the chosen color. | |
| Uncharted Haven | Land | Uncharted Haven enters the battlefield tapped. As Uncharted Haven enters the battlefield, choose a color. {T}: Add one mana of the chosen color. | |
| Voracious Wurm | 1G | Creature — Wurm | Voracious Wurm enters the battlefield with X +1/+1 counters on it, where X is the amount of life you've gained this turn. 2/2 |
| Locket of Yesterdays | 1 | Artifact | Spells you cast cost {1} less to cast for each card with the same name as that spell in your graveyard. |