Can you multi attack this special power? Twice?

PLANETS BECOME WEAPONS: Give Ziran the Tester a power action. At the beginning of your next turn, deal 1 unavoidable damage to each opposing character if Ziran the Tester hasn't taken any damage since your last turn.

And if you multiattack the s
above twice do you deal damage on the second part or is it 0 due To the -1

You can do it twice. It will then deal 1 unavoidable damage twice to all opponents it you do not get damaged.

-1 for Multiattack is only for the damage value and this power has nothing to do with the damage value.

you can use it twice, but if you were playing against me, I'd make sure you took at least a click of damage to make sure your actions were for naught.

Muahahaha we will see big red cheese....!

Woah, what?! Man! I pulled this power off like 5 times last night in tourney play! And each time I could have Multiattacked to double it?!