Astarion, Illithid Controlled

Flash, Lifegain, Deathstrike
When Astarion attacks, if he was unblocked, put
an Illithid counter on target Creature or Planeswalker an opponent controls.
Illithid Counters are removed at each players
end step.
Creatures and Planeswalkers with Illithid counters
on them are under your control.