M:tG card similarity search
3 · Artifact
As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.
| Name | Mana | Type | Text |
|---|---|---|---|
| Obscuring Aether | G | Enchantment | Face-down creature spells you cast cost {1} less to cast. {1}{G}: Turn Obscuring Aether face down. (It becomes a 2/2 creature.) |
| Mistform Sliver | 1U | Creature — Illusion Sliver | All Slivers have "{1}: This permanent becomes the creature type of your choice in addition to its other types until end of turn." 1/1 |
| Aminatou's Augury | 6UU | Sorcery | Exile the top eight cards of your library. You may put a land card from among them onto the battlefield. Until end of turn, for each nonland card type, you may cast a spell of that type from among the exiled cards without paying its mana cost. |
| Meddling Kids | 2WU | Creature — Human Child | As Meddling Kids enters the battlefield, choose a word with four or more letters. Spells with the chosen word in their text box can't be cast. 2/3 |
| Sapphire Medallion | 2 | Artifact | Blue spells you cast cost {1} less to cast. |
| Shifting Loyalties | 5U | Sorcery | Exchange control of two target permanents that share a card type. (Artifact, creature, enchantment, land, and planeswalker are card types.) |
| Honest Rutstein | 1BG | Legendary Creature — Human Warlock | When Honest Rutstein enters the battlefield, return target creature card from your graveyard to your hand. Creature spells you cast cost {1} less to cast. 3/2 |
| Cheap Ass | 1W | Creature — Donkey Townsfolk | Spells you cast cost {½} less to cast. 1/3.5 |
| Stone Calendar | 5 | Artifact | Spells you cast cost up to {1} less to cast. |
| Ruby Medallion | 2 | Artifact | Red spells you cast cost {1} less to cast. |