Ra'vish'a', Guardian Beast

Ra'vish'a', Guardian Beast's toughness is equal to
the number of artifacts you control. Defender.
Noncreature artifacts you control have shroud
and indestructible, and other players cannot gain
control of them.
{t}, Exile Ra'vish'a', Guardian Beast: Exile and
flicker up to all artifacts you control. Draw a card
for each artifact that you do not flicker.