Hero card

Donatello, Mutant Mechanic

Legendary Creature - Mutant Ninja Turtle

PayoffThe more of what it needs is on the battlefield, the stronger it gets: the deck has to feed it a lot

Needs: Artifacts

Gives: Counter +1/+1, Legendary

Not in winning lists yet: read from the card text and the graph

Build a deck with Donatello, Mutant Mechanic as the hero

Makes it work

Emissary Escort · Ultron Drone · Selfcraft Mechan · Voyager Quickwelder · Hydraulic Helper · Mechan Shieldmate · Metalhead · Mechan Assembler

Benefits from it

Mikey & Don, Party Planners · Ambling Stormshell

Use instead if you don't have it

Lilysplash Mentor · Thranduil's Company · Erudite Wizard · Hei Bai, Spirit of Balance · Skv'x the Augmenter · Symbiote Spider-Man

Cards in the meta that answer it

Countersculpt (Azorius Control) · Get Lost (Azorius Control) · Inevitable Defeat (4-Color Control) · Bitter Triumph (Dimir Aggro)