My favorites are Gigantosaurus and Ghoultree for a cheap 10 power
At a higher mana cost this might have been a bad card, but as a one mana instant it's good enough to warrant its restriction in Type 1
What beats lifegain (know your weaknesses) Lifegains Achilles heel is that a high life total is only worth something if the game is decided by life totals and several strategies simply ignore it: Commander damage 21 points from a single commander kills you regardless of your life total
Borderless Skullclamp Borderless cards are sometimes just, like, sorta, maybe, I guess better
Given how slow the format is, players can spend an enormous amount of mana to sc scry for lots of cards -- enough to make the ability worth using in make X a huge number and scry enough cards for it to be highly efffective with a 100-card deck
This here is one of our new commanders from Commander 2015