Primer

•Put any of the following on the battlefield,
Winding Constrictor, CorpseJack Menace,
Vorinclex, Hardened Scales, to get extra counters.
•Also, Mephidross Vampire or Vigor or Rite of
Passage to get a counter when damage is dealt.
•Once you have one of each, cast Walking
Ballista with 2 or more counters. Remove 1,
and do damage to itself. It will get 2 counters.
Continue process until all players can be killed.