Card Name Mana Cost Type Enchantment Rarity Rare rules Text Whenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it
A lot of balance and care goes into choosing the cost of a card, more than I can express here, but looking for similar effects on existing Magic cards can give you an idea of a fair costfor example, a ramp spell that puts two lands into play ought to cost 4 mana, per Explosive Vegetation
Last month, it hit a high of $978, and it seemed as if the card would break the $1,000 barrier in November
That space has instead been filled by the open secret that is fan-created unofficial emulators and simulators
Its still a good card though, and it plays well with evasion-granting equipment like Dragoon's Lance