Splinter & Leo, Father & Son is a rare Legendary Creature — Mutant Ninja Rat Turtle card from Teenage Mutant Ninja Turtles Eternal (TMC), collector number 103. Current market price: $0.46, TCGplayer market prices via Scryfall.
When Splinter & Leo enter, choose one or both. Each mode must target a different player. • Target player creates a 2/2 red Mutant creature token. • Put a +1/+1 counter on each other creature target player controls.