So I had an interesting one recently at our local win a box tournament.
Scene - I have 12 life remaining, my opponent has 9. I have an un-monstrous Arbor Colossus and a Polukranos, World Eater(monstrous 4), my opponent has no board at all apart from lands.
It's my turn, I attack with both my creatures. My opponent casts Titan Strength on my Polukranos and then casts Deflecting Palm on Polukranos so I am now dead to my own Polukranos (12/12).
The game ended here because my opponent started shouting so loud about how he had won with such a play that I missed a vital part of the board.
I could have used the monstrous ability on my Arbor Collosus and made that a 9/9. So I have this question:-
If I had used my monstrous on the Arbor Collosus - would that make the game a draw (we both die at the same time) or could I have had my creatures deal their damage in an order of my choosing, and thus win the game before being killed by my own Polukranos??