Shared Animosity
E02 · Explorers of Ixalan #29 · Rare · released 2017-11-24
{2}{R}
Enchantment
Whenever a creature you control attacks, it gets +1/+0 until end of turn for each other attacking creature that shares a creature type with it.
"It is the nature of souls that they burn more brightly together than apart."
—Vessifrus, flamekin demagogue