Mad Mommadore, Joel's Avenger

When Mad Mommadore enters the battlefield, create 3 3/3 blue Fleet tokens with crew 2 and 2 1/1 blue Pilot tokens.

Reach, Trample, Islandwalk, Crew 4

When Mad Mommadore is crewed, you may add any number of +1/+1 counters to Mad Mommadore from creatures you control.

You may cast spells for free from the top of your library by removing +1/+1 counters from Mad Mommadore equal to that spells mana cost.