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 |
|---|---|---|---|
| Cabaretti Ascendancy | RGW | Enchantment | At the beginning of your upkeep, look at the top card of your library. If it's a creature or planeswalker card, you may reveal it and put it into your hand. If you don't put the card into your hand, you may put it on the bottom of your library. |
| Keeper of the Secret Lair | 1U | Legendary Creature — Merfolk Rogue | Flash You may cast Secret Lair spells as though they had flash. Secret Lair spells you cast cost {1} less to cast. 2/1 |
| Naiad of Hidden Coves | 2U | Enchantment Creature — Nymph | As long as it's not your turn, spells you cast cost {1} less to cast. 2/3 |
| Sunscape Familiar | 1W | Creature — Wall | Defender (This creature can't attack.) Green spells and blue spells you cast cost {1} less to cast. 0/3 |
| Chronicler of Worship | 1G | Creature — Human Monk | When Chronicler of Worship enters the battlefield, put a random Shrine card from among the top seven cards of your library into your hand. It perpetually gains "This spell costs {1} less to cast." Then shuffle. {T}: Add one mana of any color. 1/1 |
| Goblin Influx Array | 3R | Enchantment | Goblin spells you cast cost {R} less to cast. (If it doesn't require {R}, it costs {1} less to cast.) At the beginning of your end step, conjure a random card from Goblin Influx Array's spellbook into your hand. |
| Urza's Filter | 4 | Artifact | Multicolored spells cost up to {2} less to cast. |
| Mistform Mask | 1U | Enchantment — Aura | Enchant creature {1}: Enchanted creature becomes the creature type of your choice until end of turn. |
| Krosan Warchief | 2G | Creature — Beast | Beast spells you cast cost {1} less to cast. {1}{G}: Regenerate target Beast. 2/2 |
| Ragemonger | 1BR | Creature — Minotaur Shaman | Minotaur spells you cast cost {B}{R} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a Minotaur spell with mana cost {2}{R}, it costs {2} to cast.) 2/3 |