Splinter, Aging Champion
Legendary Creature — Mutant Ninja Rat
When Splinter enters, destroy up to one target tapped creature.
When Splinter leaves the battlefield, you and another target player each draw a card.
- CMC
- 3
- Mana cost
- Color identity
- W
- Rarity
- rare
- Set
- Teenage Mutant Ninja Turtles Eternal
- Price
- $1.68
- EDHREC rank
- #18542
Splinter, Aging Champion is the payoff half of a two-card engine — once Splinter, Radical Rat gets it onto the battlefield for free, it immediately starts generating value every combat with a triggered ability that punishes opponents for blocking or ignoring it. The cost is context: without Radical Rat doing the cheating, you're paying full retail for a creature that demands a specific deck to justify the slot.
Best Commanders
Commanders with the highest synergy

Splinter, Radical Rat
Splinter, Radical Rat exists to put Splinter, Aging Champion into play ahead of curve, and the 17% inclusion rate reflects how central that relationship is — Radical Rat's ability to fetch and deploy Aging Champion turns what would be a clunky top-end card into an early-game engine piece that snowballs from there.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Splinter, Aging Champion belongs, and specifically in decks helmed by Splinter, Radical Rat — the singleton format's tolerance for narrow, high-upside creatures is exactly the environment this card was designed for. In Legacy and Vintage, it's technically legal but has no real home; neither format wants a build-around creature that relies on a partner card to function efficiently. Oathbreaker is a legal option and could support it if the oathbreaker or signature spell synergizes with the Splinter package, but the competitive card pool there is thin enough that it mostly mirrors the Commander experience.
Key Combos
Combo lines featuring this card
Price Context
Current price
$1.68 cheap tier
At $1.68, Splinter, Aging Champion sits in the range where you're not taking a financial risk to test it, and the price reflects its narrow playability — high demand in Splinter, Radical Rat decks keeps it from being a bulk rare, but it's not climbing without a broader use case emerging.
Explore
Sources
Mentioned
- Splinter, Radical Rat
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.