Warp: You can see cards with Warp when they are on top of your deck, and you can play them as if they were in your hand.
Your opponent cannot see cards with Warp on top of your deck.
The exception to the above is with cards such as Tesya, Omen Shaper that will be revealed when their relevant ability is activated while on top of your deck.
There is an animation when playing Warp cards that signals to your opponent that the card was played from your deck and not your hand.
Warp appeared in The Fall of Argenport in .