Found this small issue.

Played Shorecrasher Mimic (whenever you play a spell that's both green and blue, Shorecrasher Mimic becomes 5/3 and gains trample until end of turn.) with Simi Charm (Green and Blue instant, Choose one target gets +3/+3 until end of turn; or permanents you control gain hexproof until end of turn; or return target creature to its owner's hand.
Creature should have been an 8/6 with trample it was not.
Also Land Tax does not work correctly.
Creature should have been an 8/6 with trample it was not.
Also Land Tax does not work correctly.