+Tattermunge (3)
Whenever you cast a red spell, Tattermunge Duo gets +1/+1 until end of turn.
Whenever you cast a green spell, Tattermunge Duo gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)
Tattermunge Maniac attacks each combat if able.
: Each blocked creature gets +1/+0 and gains trample until end of turn.
Gatherer works better in the Companion app!