Castle nim-Calan

When castle nim-Calan enters the battlefield, return a untapped land back to your hand
{t}: add {r}{g},{g}{g},or{r}{r} to your manna pool
{r/g}{r/g}{t}: put a 1/1 dragonic warrior token onto the battlefield with haste and cumulative upkeep- put 3/3 dragonic warrior onto the battle field for every three age counters on this token.