MTG Salvation

My most memorable game of the SOI format, I had drafted what I thought was a really synergistic G/B deck, but didn't end up winning any. The last game of the night, I was about to win by him running out of cards across a stalled board. I was able to turn all my extra lands into two tokens, via a couple of enchantments (the vampire one, and the green insect one). But he had a tooth collector out, and could defang my chumps every turn. Still, it looked like I was about to win if I just held on. But I drew my built-around but so far unseen Gitrog Monster, played it, and equiped it with the Haunted Cloak, giving it trample. But didn't bother to attack. His turn, he casts the red Act of Treason type card, steals the Gitrog Monster, swings with all, and punches through exactly leathal damage, 21 I think it was. I was cursing myself for giving him the chance for no real reason.