M:tG card similarity search
5RG · Legendary Creature — Dragon
Flying, haste Whenever Klauth, Unrivaled Ancient attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end. 4/4
| Name | Mana | Type | Text |
|---|---|---|---|
| Sunglasses of Urza | 3 | Artifact | You may spend white mana as though it were red mana. |
| Gwenna, Eyes of Gaea | 2G | Legendary Creature — Elf Druid Scout | {T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells or activate abilities of a creature or creature card. Whenever you cast a creature spell with power 5 or greater, put a +1/+1 counter on Gwenna, Eyes of Gaea and untap it. 2/3 |
| The Core | Legendary Land | (Transforms from Matzalantli.) Fathomless descent — {T}: Add X mana of any one color, where X is the number of permanent cards in your graveyard. | |
| Blacker Lotus | 0 | Artifact | {T}: Tear Blacker Lotus into pieces. Add four mana of any one color. Remove the pieces from the game. |
| Elder Brain | 5BB | Creature — Horror | Menace Whenever Elder Brain attacks a player, exile all cards from that player's hand, then they draw that many cards. You may play lands and cast spells from among the exiled 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 color to cast it. 6/6 |
| Zaxara, the Exemplary | 1BGU | Legendary Creature — Nightmare Hydra | Deathtouch {T}: Add two mana of any one color. Whenever you cast a spell with {X} in its mana cost, create a 0/0 green Hydra creature token, then put X +1/+1 counters on it. 2/3 |
| Poison Dart Frog | 1G | Creature — Frog | Reach {T}: Add one mana of any color. {2}: Poison Dart Frog gains deathtouch until end of turn. 1/1 |
| Congregation Gryff | 1GW | Creature — Hippogriff Mount | Flying, lifelink Whenever Congregation Gryff attacks while saddled, it gets +X/+X until end of turn, where X is the number of Mounts you control. Saddle 3 (Tap any number of other creatures you control with total power 3 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.) 1/4 |
| Oasis Ritualist | 3G | Creature — Naga Druid | {T}: Add one mana of any color. {T}, Exert Oasis Ritualist: Add two mana of any one color. (An exerted creature won't untap during your next untap step.) 2/4 |
| Tome of the Guildpact | 5 | Artifact | Whenever you cast a multicolored spell, draw a card. {T}: Add one mana of any color. |