Double Hit if 2+ Beast Rotates
War Chant gives a +1 Rotate for a unit. This is played on a Savage Board Boss that gives +1 Rotate as well.
End result is the card (Arachnarok Spider) hits twice for 6+6 = 12 damage.
It should only hit for 6 damage.
Seems like it was intentionally abused in Ranked, should run a database search and probably ban/purge the games where it was abused.