Gliscebat, Failed Experiment

{t}{x}, put +1/+1 counters on Gliscebat,
Failed Experiment equal to the power or toughness of target creature, where X is the number of +1/+1 counters already on Gliscebat, Failed Experiment.
"Well, obviously a stupid animal wouldn't be
able to get the job done, I do hope my next subject
is better at following orders." ~Dominum