-A-

-A- is all nonsorcery permanent types that starts
with a
X is equal to the number of times the letter a
appears on permanents you control
Aura swap {x}, Awaken X--{x}{x}, Annihilator X
Affinity for a, Absorb X, Amplify X,
-A- enters the battlefield with X +1/+1 counters
on it