Albion Games Caf is one of the best starting points for beginners due to its welcoming atmosphere and helpful staff
There are very few places where it is going to be a bad card, and even if you lose access to your graveyard, it is still an efficient creature with lifelink at its worst
If you're at 0 or less life and Phyrexian Unlife leaves the battlefield, you'll lose the game (unless some other effect is keeping you from losing)
Pikachu with Grey Felt Hat immediately springs to mind, a free gift card that you now won't find for less than $600
The holographic layer can scratch, peel, or warp if handled carelessly
Flying and Firebending 2 is a pretty potent combo on a 4/4, and he also draws you cards for doing any of the bending activities