Keb Maxxer

When Keb Maxxer enters the battlefield, create
2 Welfare Cheque tokens.
When you create a Welfare Cheque token,
sacrifice it.
When you sacrifice a Welfare Cheque token,
put a +1/+1 counter on Keb Maxxer. Then, if
Keb Maxxer has more than 3 +1/+1 counters
on it, sacrifice it.