Whenever another artifact enters the battlefield under your control, put a +1/+1 counter on Jackknight. If that artifact is a Contraption, Jackknight gains lifelink until end of turn.
“My sword is at your service, as are my scissors, corkscrew, and bottle opener.”
![Jackknight (Unfinity Foil Edition) [The List]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/7327d5e9-fb82-5a9f-8a2f-be8d4089b5ab.jpg?v=1770932787&width=1445)