Blastoise

{t} add up to 3 of any color to your mana pool
When Blastoise attacks target land gets a
sink counter. At 2 sink counters target land
becomes and island and you gain control of it.
{t} {x} destroy {x} target lands with sink
counters on them
Evolution - sacrifice WarTortle and cast Blastoise for {u} {u} {u}