Geological Appraiser
Creature — Human Artificer
Legal in
Standard, Modern, Legacy, Vintage, Commander
Rulings (10)
If you cast a spell "without paying its mana cost", you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the spell has any mandatory additional costs, you must pay those to cast it.
2023-11-10
If the discovered card has in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
2023-11-10
When you discover, you must exile cards. The only optional part of the ability is whether you cast the exiled card or put it into your hand.
2023-11-10
The mana value of a split card is determined by the combined mana cost of its two halves. If discover allows you to cast a split card, you may cast either half (as long as its mana value is less than or equal to the effect's discover value) but not both halves.
2023-11-10