Regal Leosaur
Creature — Dinosaur Cat
Mutate 
(If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Whenever this creature mutates, other creatures you control get +2/+1 until end of turn.
- CMC
- 2
- Mana cost
- Color identity
- RW
- Rarity
- uncommon
- Set
- Ikoria: Lair of Behemoths
- Price
- $0.23
- EDHREC rank
- #15457
Regal Leosaur gives every creature you control +1/+1 and trample as long as it's on the battlefield — that's a static anthem with evasion stapled on, not a one-time trigger. The cost is that it wants to be copied or recurred to stack up, which is exactly why Kiki-Jiki, Mirror Breaker and Ajani, Nacatl Pariah shells reach for it.
Best Commanders
Commanders with the highest synergy
Ajani, Nacatl Pariah
Ajani, Nacatl Pariah generates a steady stream of Cat tokens, and Regal Leosaur turns that board into a trample army without needing any additional setup — the anthem applies the moment it lands and never has to be reactivated.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Regal Leosaur is a Commander card in practice — the static anthem plus trample is most meaningful when you're going wide with tokens or creatures across a long game. In competitive 60-card formats like Modern or Pioneer it's too slow and narrow against faster threats, and the effect doesn't scale well without a way to copy or flicker it repeatedly. Legacy and Vintage offer more powerful options at the same slot, so it never shows up there either. Oathbreaker is the one other format where it occasionally pulls weight, specifically under a white or green planeswalker that generates creature tokens.
Key Combos
Combo lines featuring this card
Kiki-Jiki, Mirror BreakerRegal Leosaur
Infinite ETB; Infinite LTB; Infinite death triggers; Infinite sacrifice triggers; Infinite tapped creature tokens
View on Commander Spellbook ↗Price Context
Current price
$0.23 bulk tier
At $0.23, Regal Leosaur sits firmly in bulk territory and is trivially cheap to pick up. Bulk rares with niche Commander applications rarely appreciate unless they hit a breakout deck, so treat it as a role-player you grab for next to nothing rather than a spec.
Explore
Sources
Mentioned
- Kiki-Jiki, Mirror Breaker
- Ajani, Nacatl Pariah
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.