Angelic Rear-Guard

Gain control of all creatures and artifacts on the battlefield that you do not control. Then untap
all creatures you control. Those creatures gain X
+1/+1 counters, where X is equal to the number
of artifacts you control.
At the end of your turn, you lose the game.
Though the great armies were decimated, the Rear-
Guard remains and begins a final stand. Alongside
the armies of earth, they shall fight to the death.