Aggressive Agriculture

In each end step, your opponents sacrifice a land
and create a treasure token. Put a Crop counter
on each land sacrificed this turn and exile them
until Aggressive Agriculture leaves the battlefield.
At the beginning of each upkeep you create {x} treasure tokens, where {x} is equal to the
number of crop counters created last turn.
Sacrifice Aggressive Agriculture at the end
of your next upkeep phase, remove all crop
counters and return these lands to the
battlefield tapped under their owners' co