Ratadrabik of Urborg | Vesuvan Duplimancy | Mondrak, Glory Dominus

(and one other card)

Cast
Cackling Counterpart by paying ({1} magic symbol) ({U} magic symbol) ({U} magic symbol) , targeting
Mondrak.
Vesuvan Duplimancy triggers, creating two nonlegendary token copies of
Mondrak.
Resolve
Cackling Counterpart, creating eight copies of
Mondrak.
Put all but one legendary
Mondrak into your graveyard due to the legend rule.
When the
Mondraks die,
Ratadrabik triggers eight times.
Resolve the first
Ratadrabik trigger, creating a number of nonlegendary token copies of
Mondrak equal to 2^(the number of
Mondraks you currently control) that are 2/2 Zombies in addition to their other types.
Repeat step 6 for each remaining trigger.