M:tG card similarity search
2R · Legendary Creature — Dragon Shaman
Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.) 1/3
| Name | Mana | Type | Text | 
|---|---|---|---|
| Emrakul's Influence | 2GG | Enchantment | Whenever you cast an Eldrazi creature spell with mana value 7 or greater, draw two cards. | 
| Boon of Boseiju | 1G | Instant | Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it. | 
| Runadi, Behemoth Caller | 2G | Legendary Creature — Cat Shaman | Whenever you cast a creature spell with mana value 5 or greater, that creature enters the battlefield with X additional +1/+1 counters on it, where X is its mana value minus 4. Creatures you control with three or more +1/+1 counters on them have haste. {T}: Add {G}. 1/3 | 
| Plasm Capture | GGUU | Instant | Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value. | 
| Sunbird's Invocation | 5R | Enchantment | Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order. | 
| Entrancing Melody | XUU | Sorcery | Gain control of target creature with mana value X. | 
| Tethmos High Priest | 2W | Creature — Cat Cleric | Heroic — Whenever you cast a spell that targets Tethmos High Priest, return target creature card with mana value 2 or less from your graveyard to the battlefield. 2/3 | 
| Kurgadon | 4G | Creature — Beast | Whenever you cast a creature spell with mana value 6 or greater, put three +1/+1 counters on Kurgadon. 3/3 | 
| Overwhelming Intellect | 4UU | Instant | Counter target creature spell. Draw cards equal to that spell's mana value. | 
| Galvanic Giant | 3U | Creature — Giant Wizard | Whenever you cast a spell with mana value 5 or greater, tap target creature an opponent controls and put a stun counter on it. 3/3 |