Tchanka, Zoto's Disciple

Lands you control are 3/3 zombie spirits
with lifelink and trample, they're still lands.
At the beginning of your upkeep, sacrifice a
nontoken creature, or Tchanka deals damage to
you equal to twice the number of lands you
control.
" Master taught me how to feel the lands and the trees,
but he didn't teach me how to control them, I taught
myself that."