Maria, Lost Lady of Scales

When a non-token Dragon enters the battlefield
under your control Create a Red 4/4 Dragon
token with flying.
Attacking dragons gain First strike if Maria, Lost
Lady of Scales has first strike. This is the same
for double strike, Vigilance, Trample and
Menace.
Maria, Lost Lady of Scales gains flying if it is
attacking the same opponent or planeswalker
as a another dragon creature.