Felps, Unmedicated Traveler

Intimidate, vigilance, reach
This card doesn't untap during your untap step.
Felps gets +X/+X, where X is half the number
of lands in play, rounded down.
{w}{u}{b}{r}{g}{t}: Untap each land you control.
Until end of turn, those lands are X/1 Elemental
creatures, where X is your commander's
power. They're still lands.