Auroa, The Next Gen

Enters battle tapped and doesn't untap. So long
as it's tapped it has hexproof. Whenever you put
a +1/+1 counter from outside sources on Auroa,
the next gen, level it up.Whenever this untaps opponent loses unless they tap all lands that are untapped.
(Level 1): Gains (1) +1/+1 counter.
(Level 2-3): Gains a first strike or flying counter.
(Level 4-5): Gains a trample or vigilance counter.
(Level 7): Gains lifelink and untaps.