M:tG card similarity search
· Artifact
Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost.
| Name | Mana | Type | Text |
|---|---|---|---|
| River Song's Diary | 3 | Artifact | Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves. At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost. |
| Tlincalli Hunter | 5GG | Creature — Scorpion Scout | Trample Once each turn, you may pay {0} rather than pay the mana cost for a creature spell you cast from exile. 7/7 |
| Qasali Ambusher | 1GW | Creature — Cat Warrior | Reach If a creature is attacking you and you control a Forest and a Plains, you may cast Qasali Ambusher without paying its mana cost and as though it had flash. 2/3 |
| Torrential Gearhulk | 4UU | Artifact Creature — Construct | Flash When Torrential Gearhulk enters the battlefield, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. 5/6 |
| Knowledge Pool | 6 | Artifact | Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library. Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost. |
| Kyren Legate | 1R | Creature — Goblin | If an opponent controls a Plains and you control a Mountain, you may cast this spell without paying its mana cost. Haste 1/1 |
| Conspiracy Unraveler | 5UU | Creature — Sphinx Detective | Flying You may collect evidence 10 rather than pay the mana cost for spells that you cast. (To collect evidence 10, exile cards with total mana value 10 or greater from your graveyard.) 6/6 |
| Circle of Solace | 3W | Enchantment | As Circle of Solace enters the battlefield, choose a creature type. {1}{W}: The next time a creature of the chosen type would deal damage to you this turn, prevent that damage. |
| Door of Destinies | 4 | Artifact | As Door of Destinies enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies. Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies. |
| Harsh Mercy | 2W | Sorcery | Each player chooses a creature type. Destroy all creatures that aren't of a type chosen this way. They can't be regenerated. |