Archdruid of Yavimaya

Archdruid of Yavimaya loses all abilities if you
control any creatures that share a creature type.
Creature spells you cast cost that don't share a
creature type with those you control cost {1} less
to cast for each.
{g}{p/g}: Other creatures you control gain your
choice of hexproof, reach, or trample until the
next end step.