That price is more than worth paying in competitive, where Gemstone CavernsGemstone Caverns might not even be the only card you have in your opening hand that requires you to pitch a card to get ahead a mana
Commander Koh, the Face Stealer When Koh enters, exile up to one other target creature
This version is capable of dealing a staggering 250 damage with every attack, and when used right, makes for one of the most powerful late-game builds in all of PTCGP
Each pack contains five cards, but cards 1-3 are guaranteed to be low rarity, single diamond cards
Of course, Chalice's controller should adjust their deck and strategy somewhat so they are not hit too hard by their own Chalice.
The card draw here is immaculate, and this is really strong even for a mono-blue creature