One of the terms that can cause some confusion in Eternal is the keyword Owner. This sounds like it should be obvious: it's the player that owns the card. But who is that? Working out who is the owner of a card can be confusing at first.
What Does Owner Mean?
In Eternal, Owner doesn't necessarily mean what you think. It does not mean 'the player who had the card in their deck'. Instead of this it means 'the player controlling the card at the moment'.
So ownership can change during a game. For example if I use Pilfer to take a card from the opponent's deck then I become the owner for the duration of the game (unless the other player steals it back again!)
Why does this matter? Because the text on a few cards refers to the card's owner. Teleport and Praxis Displacer both put a card into the owner's hand, Argenport Instigator deals damage to the owner of a unit that dies.
This can cause some confusion, but it can also provide for some clever combos. So if you use Madness to steal enemy unit temporarily then immediately cast Teleport on it, it returns to your hand because you are its owner at the time.
This page written for Eternal version 1.16, Card Set 1
Last updated: 20-02-2017