M:tG card similarity search
2G · Sorcery
Put a +1/+1 counter on target creature, then double the number of +1/+1 counters on it. Flashback {8}{G}{G}. This spell costs {X} less to cast this way, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
| Name | Mana | Type | Text | 
|---|---|---|---|
| Sparring Regimen | 2W | Enchantment | When Sparring Regimen enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) Whenever you attack, put a +1/+1 counter on target attacking creature and untap it. | 
| Lurking Automaton | 5 | Artifact Creature — Construct | Reveal Lurking Automaton as you draft it and note how many cards you've drafted this draft round, including Lurking Automaton. Lurking Automaton enters the battlefield with X +1/+1 counters on it, where X is the highest number you noted for cards named Lurking Automaton. 0/0 | 
| Blazing Shoal | XRR | Instant — Arcane | You may exile a red card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets +X/+0 until end of turn. | 
| Displacement Wave | XUU | Sorcery | Return all nonland permanents with mana value X or less to their owners' hands. | 
| Kavu Titan | 1G | Creature — Kavu | Kicker {2}{G} (You may pay an additional {2}{G} as you cast this spell.) If Kavu Titan was kicked, it enters the battlefield with three +1/+1 counters on it and with trample. 2/2 | 
| Kiora, Sovereign of the Deep | 3GU | Legendary Creature — Merfolk Noble | Vigilance, ward {3} Whenever you cast a Kraken, Leviathan, Octopus, or Serpent spell from your hand, look at the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value less than X from among them without paying its mana cost. Put the rest on the bottom of your library in a random order. 4/5 | 
| Conclave Mentor | GW | Creature — Centaur Cleric | If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on that creature instead. When Conclave Mentor dies, you gain life equal to its power. 2/2 | 
| Silvar, Devourer of the Free | 3BR | Legendary Creature — Cat Nightmare | Partner with Trynn, Champion of Freedom (When this creature enters the battlefield, target player may put Trynn into their hand from their library, then shuffle.) Menace Sacrifice a Human: Put a +1/+1 counter on Silvar, Devourer of the Free. It gains indestructible until end of turn. 4/2 | 
| Rethink | 2U | Instant | Counter target spell unless its controller pays {X}, where X is its mana value. | 
| Sewer Crocodile | 5U | Creature — Crocodile | {3}{U}: Sewer Crocodile can't be blocked this turn. This ability costs {3} less to activate if there are five or more mana values among cards in your graveyard. 4/6 |