Hyjack Tracker

When a creature you control is exerted, it gains first strike until end of turn.
When Hyjack Tracker attacks, you may exert it. If you do, you may exert another creature you control. (An exerted creature won't untap during your next untap step.)
"A lone Hyjack isn't that dangerous. You should fear what comes after it."
- Councillor Valik, to Senior Mage Yoon