Yrgstra

{1} Add 1 infestation counter to target land
Lands you control with 3 or more infestation
counters have {t}Gain {c}{c}.
Whenever an opponent taps a land with 3 or
more infestation counters they also pay 3 life
You may sacrifice Yrgstra, if you do remove all infestation counters from all lands and create
that many 1/1 green black insect tokens.