American Lion

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+1 until end of turn.)
Whenever American Lion attacks, other attacking lion and white creature cards you control gain indestructible until end of turn.
The American lion was initially considered a distinct species of Pantherinae, and designated as Panthera atrox. It was later assigned as a subspecies of P. leo rather than as a separate species.