Vacillating Construct

Vacillating Construct comes into play with two
+1/+1 counters on it.
Whenever a creature comes into play or phases
in, put a +1/+1 counter on Vacillating Construct.
Whenever a creature leaves into play or phases
out, remove a +1/+1 counter on Vacillating
Construct.
"A product of The Flux will unsurprisingly
fluctuate like The Flux"
~Teferi Planeswalker