Freeze doomsayer next turn, curved to alex
boom freeze mage boned druid
Many cards start to seem insane when you dream up sweet draws and combos with them.
What people don't seem to realize, that while in some matches Geist will fuck up your opponents day in the case he loses cards from his hand, the card doesn't gain you any tempo or even value most of the time. It's a tech card yes, but a tech card that doesn't directly win you anything. It's effect is delayed like both Elise's so in some matches it does absolutely nothing. In best case scenarios it can win you the game, but I will bet it's not common enough that this will be a one off in most decks (like Loatheb was).
It all just comes down to consistency like with any other tech card.