The Nameless, Soul Chaser

Chase 2 (Attach to target Planeswalker for 2 turns
or Planeswalker activations; Planeschaser
determines how loyalty counters are distributed
and targets of Planeswalkers activated abilities.
Planechaser is controlled by it's caster.)
For each activation of enchanted Planeswalker,
destroy target non Planeswalker permanent that
player is in control of.