Mark Rogers, Math Wizard

Hexproof, Indestructible, Vigilance.
{t} Place a math counter on Mark Rogers, Math
Wizard.
When Mark Rogers, Math Wizard reaches 6
math counters, multiply those math counters by
the amount of players left in the game. Once
Mark Rogers, Math Wizard's math counters have multiplied remove them all and add
+1/+1 counters for each math counter
removed.