Masquerade
When played:
- after drawing 2 cards, each player passes the worst card in his hand to the left (according to trash priority number)
- then, if player has a card worth trashing AND it won’t decrease that turn’s buying power, the card is trashed
- cards like Watchtower should function as expected, Possession players will not abuse this though
Geronimoo's Dominion Simulator 
Tunnels are getting passed between bots when masquerade is played with copper also in hand. This probably shouldn’t happen.
Tunnel’s trash priority was wrong. I’ll set it 1 lower than Gold’s (so Gold gets trashed before Tunnel)