Phyrexian Arena Pain for pleasure Phyrexian Arena is a Commander staple because this three-mana enchantment is black and lets you draw a card at the beginning of your upkeep for the cost of one life
The lone blemish that the mechanic has is the existence of Alrund's Epiphany, and while that card maybe shouldnt have foretell printed on it, its intrinsically powerful enough that the mechanic isnt entirely to blame
MacCready, Lamplight Mayor gives skulk to your small creatures, making them unblockable by bigger creatures and helping your attacks with tokens get through blockers, especially if you dont have any anthem or +1/+1 counter effects out on the field
The same is likely true of Giden Blackblade, too
(2004-10-04) If either target is illegal at the time the ability resolves (whether because it has left the battlefield, because it has gained Shroud or Protection, or for any other reason), the ability taps the remaining target, but no damage is dealt