Twinrova

If this creature is cast with red mana, it
gains protection from red. If this creature
is cast with blue mana, it gains protection
from blue. If this creature is cast with both
red and blue mana, it gains +1/+1.

"...no no, she is very pretty. But she's also
over a hundred years old." - L.B. Terrus,
Hylian Historian.