Scithian Decimator

Flying, Metal Hybrid
When you cast Scithian Decimator, if {x}
is {4} or more creatures your opponents
control lose indestructible and hexproof
until end of turn, if {x} is {6} or more, destroy
all creatures each opponent controls.
" Even the Phyrexians with their legion of
horrors fear his gaze." Teferi, Master of Time