Slygrith, the first Tremor

First strike, trample
Whenever a land or non-token creature
enters the battlefield choose one:
• create a 1/1 leech with wither
•create a 3/1 worm
{2}{t}; sacrifice five worm and or leechs;
put three +1/+1 counters on Slygrith
and destroy two target lands.