M:tG card similarity search
5WUBRG · Creature — Avatar
If Primeval Spawn would enter the battlefield and it wasn't cast or no mana was spent to cast it, exile it instead. Vigilance, trample, lifelink When Primeval Spawn leaves the battlefield, exile the top ten cards of your library. You may cast any number of spells with total mana value 10 or less from among them without paying their mana costs. 10/10
| Name | Mana | Type | Text |
|---|---|---|---|
| Outrageous Robbery | XBB | Instant | Target opponent exiles the top X cards of their library face down. You may look at and play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any type to cast it. |
| Galvanoth | 3RR | Creature — Beast | At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell. 3/3 |
| Mind's Desire | 4UU | Sorcery | Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When you cast this spell, copy it for each spell cast before it this turn.) |
| 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 |
| Author of Shadows | 4B | Creature — Shade Warlock | When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 3/3 |
| Master of Predicaments | 3UU | Creature — Sphinx | Flying Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost. 4/4 |
| Cho-Arrim Legate | 2W | Creature — Human Soldier | If an opponent controls a Swamp and you control a Plains, you may cast this spell without paying its mana cost. Protection from black 1/2 |
| Sorcerous Squall | 6UUU | Sorcery | Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Target opponent mills nine cards, then you may cast an instant or sorcery spell from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead. |
| Karlach, Tiefling Spellrager | 1UR | Legendary Creature — Tiefling Barbarian | First strike, haste When this card specializes from your graveyard, return it from your graveyard to the battlefield. It perpetually gains "This creature can't block." When this card specializes from any zone, seek an instant or sorcery card with mana value 3 or less. Until end of turn, you may cast that card without paying its mana cost. 4/4 |
| North Star | 4 | Artifact | {4}, {T}: For one spell this turn, you may spend mana as though it were mana of any type to pay that spell's mana cost. (Additional costs are still paid normally.) |