If a player sacrifices a creature for any other reason (perhaps because it's a Food and the player was hungry), Clackbridge Troll's ability won't tap it or cause you to gain life or draw a card
If this is the second time this ability has resolved this turn, double the number of +1/+1 counters on that creature instead
1 Ryusei, the Falling Star
One card has to be at the bottom of the list, and for me, its Lorehold, the Historian (despite it having some amazing artwork)
You don't choose targets for Weapons Vendor's last ability at the time it triggers
We have two very strong one-sided wipes, Winds of Rath and Doomwake Giant, along with a ton of diverse spot removal, my favorite being Chains of Custody which acts an Oblivion Ring + ward and Arna can double it each combat to keep exiling more and more things