By my fifth pull, I was already up from what I originally put in and decided it was time to try my luck with a $20 pack
Sending someones hard-earned graveyard back to their library can be a back-breaking play against reanimator decks, Underworld Breach, or even Thassas Oracle, as your opponent will often have too many cards in their library to win the game after putting their graveyard back into their library
Enemy Controller [1st Edition] AST-037 (YuGiOh Ancient Sanctuary | YuGiOh Cards) prices are based on the historic sales
The card itself is not bad at all, either
Hand size management, Zeus timing, counter evaluation, and opponent Life tracking all happen at once, every turn
Like Conflux above, it can net you up to five cards, but it's cheaper to cast and more flexible