Concrete Shield

Equipped creature gets defender and loses flying.
Whenever equipped creature blocks, add a
+1/+1 counter to it.
Equip {w}{r} ({w}{r}: Attach to target creature
you control. Equip only as a sorcery.)
"Doccy can you hold this shield for me?
Careful now, it's heavy! The inside
there? That's concrete baby!"
-Cement