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 [Unstable] | Jack's On Queen](http://jacksonqueen.ca/cdn/shop/products/3d84953b-c59c-45f8-aedd-e68bff7c7ce3.jpg?v=1569473429)
