Parallax Nexus
{2}{B}
Enchantment
Fading 5 (~this~ enters with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)
Remove a fade counter from ~this~: Target opponent exiles a card from their hand. Activate only as a sorcery.
When ~this~ leaves the battlefield, each player returns to their hand all cards they own exiled with it.