Twilight Prophet Twilight Prophet requires you to ascend and gain the citys blessing to partake in the lifegain, but its far easier than it sounds, especially if your deck creates tokens or puts extra lands into play
Inquisitor Greyfax is pretty strong all around
Second, this card doesnt say sacrifice Goblin Kaboomist, but instead deals 2 damage to itself if you lose the flip
It is the namesake card of one of the formats most quick and deadly strategies that has been putting up consistent tournament results for over a year now
If you're playing a deck that floods the board with creatures, then you can simply make sure everyone else loses their creature and you get to keep yours
This effect even allows you to go infinite with cards like Exquisite Blood, and since Dina, Soul Steeper is so cheap to cast, it's easily done