M:tG card similarity search
2B · Enchantment
Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.
| Name | Mana | Type | Text |
|---|---|---|---|
| Elvish Harbinger | 2G | Creature — Elf Druid | When Elvish Harbinger enters the battlefield, you may search your library for an Elf card, reveal it, then shuffle and put that card on top. {T}: Add one mana of any color. 1/2 |
| Stonework Packbeast | 2 | Artifact Creature — Beast | Stonework Packbeast is also a Cleric, Rogue, Warrior, and Wizard. {2}: Add one mana of any color. 2/1 |
| Rhystic Cave | Land | {T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant. | |
| Culmination of Studies | XUR | Sorcery | Exile the top X cards of your library. For each land card exiled this way, create a Treasure token. For each blue card exiled this way, draw a card. For each red card exiled this way, Culmination of Studies deals 1 damage to each opponent. |
| Harvester Druid | 1G | Creature — Human Druid | {T}: Add one mana of any color that a land you control could produce. 1/1 |
| Ranger Class | 1G | Enchantment — Class | (Gain the next level as a sorcery to add its ability.) When Ranger Class enters the battlefield, create a 2/2 green Wolf creature token. {1}{G}: Level 2 Whenever you attack, put a +1/+1 counter on target attacking creature. {3}{G}: Level 3 You may look at the top card of your library any time. You may cast creature spells from the top of your library. |
| Helionaut | 2W | Creature — Human Soldier | Flying {1}, {T}: Add one mana of any color. 1/2 |
| Opal Palace | Land | {T}: Add {C}. {1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters the battlefield with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game. | |
| Patriar's Seal | 3 | Artifact | {T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control. |
| Bonehoard Dracosaur | 3RR | Creature — Dinosaur Dragon | Flying, first strike At the beginning of your upkeep, exile the top two cards of your library. You may play them this turn. If you exiled a land card this way, create a 3/1 red Dinosaur creature token. If you exiled a nonland card this way, create a Treasure token. 5/5 |