Multikicker (You may pay an additional any number of times as you cast this spell.)
This artifact enters with a charge counter on it for each time it was kicked.
: Add for each charge counter on this artifact.
When this artifact enters, put a -1/-1 counter on each creature target player controls.
, : Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)