MacCready, Lamplight Mayor {W}{B}
Legendary Creature — Human Advisor
Identity
Orzhov
EDHREC rank
#3,761
Cheapest printing
US$4.03
TCGplayer
Printings
4
Whenever a creature you control with power 2 or less attacks, it gains skulk until end of turn. (It can't be blocked by creatures with greater power.)
Whenever a creature with power 4 or greater attacks you, its controller loses 2 life and you gain 2 life.
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.