Ancient Silver Dragon

Flying, Indestructible, {4} Ward & Convoke

At the beginning of your upkeep, roll a D20.
1-4= This creature loses Indestructible until
your next turn, has {2} Ward & is tapped.
5-9= Tap this creature create a Treasure.
10-16= Take The Initiative, if you already
have it, instead this Fights target creature.
. 17-20= Perpetually has Annihilator 1.