Aminatou, the Fateshifter What I like about Aminatou, the Fateshifter is its versatility
I use it mainly to play against friends as a casual MTG Commander player
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
I want to give a nibble to your greedy side in several formats and have samples from Standard, Modern, EDH, and Pauper
My favorites are Gigantosaurus and Ghoultree for a cheap 10 power
Fetch lands Fetch lands ([c]Polluted Delta[/c], [c]Bloodstained Mire[/c], [c]Flooded Strand[/c]): Fetch lands work great in conjunction with dual lands because they can fetch the dual land of your choice directly from your library