Ntis, Moon's Reflection

At the beginning of each end step each player
loses half X life rounded down for each single
faced or single colored non-land permanent
they control and gains half X life and half X
cards rounded down for each double faced,
and multicolored non-land permanent
they control.
If a player lost equal to or less than half of
their life total create a 3/3 Elk Illusion
creature token