Talk about overpowered
Personally, I think its a fun and interesting way to play the game on an unusual axis, though I can see why players wouldnt like to see their beloved cards disappear before their eyes
Waite, the designer of the RiderWaite tarot deck, wrote of the symbol: The gallows from which he is suspended forms a Tau cross, while the figurefrom the position of the legsforms a fylfot cross
Even worse for them, any card that hits their graveyard (unless you controlled it) is exiled instead, and Valgavoth lets you cast those exiled cards later for just life instead of mana
This is what makes [c]Scouts Warning[/c] so strong, since for 1 mana you can cast a creature spell as though it had flash
This continues until all the cards have been picked, and then a new pack is opened