Battle of Anaxes

When Battle of Anaxes enters the battlefield
choose one:
Republic- At the beginning of your end step, you
may sacrifice a permanent, if you do target
opponent sacrifices a non-token permanent they control and lose life equal to its converted
mana cost.
CIS- At the beginning of your end step, you may sacrifice a permanent, if you do, each opponent discards a card, if a land card is discarded this way, put that card onto the battlefield under your control.