Jayce, Light of Piltover

First strike, Transmute ({2}: Switch this creature power
and toughness. Activate only as a sorcery.)

Whenever a artifact you control enters, scry 1. If this artifact have the highest mana value or tied for the highest mana value among artifacts in the battlefield, draw a card.

Whenever Jayce attacks, it deals X damage to target creature or planeswalker an opponent controls, where X is the highest mana value among artifacts you control.