Hyppi+Ink Eyes

[clavio]

Let's say PlayerA has a hypnotic specter and an Ink Eyes attacking PlayerB who has nothing in his graveyard. Hypnotic Specter randomly causes playerb to discard an eternal dragon. Can playerA take control of this Eternal Dragon?

[Nihil Credo]

No. You must pick the target for Ink-Eyes' ability immediately after combat damage has been dealt, i.e. before Hypnotic Specter's ability has resolved.