Grizzly, Phantom Beast Deity

[Auto] : Whenever this SIGNI attacks, if this SIGNI's power is 20000 or more, vanish target SIGN on your opponent's field with power 8000 or less. If this SIGNI's power is 30000 or more, instead vanish target SIGNI on your opponent's field with power 12000 or less.

[Action] [Turn 1] Down another upped SIGNI : This SIGNI gets + (plus) - power equal to the power of the SIGNI downed this way until end of turn.