Prossh, Skyraider of Kher

Card Name

Prossh, Skyraider of Kher

Mana Cost

3

Type

Legendary Creature – Dragon

Rarity

Mythic Rare

rules Text

When you cast this spell, create X 0/1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it.FlyingSacrifice another creature: Prossh, Skyraider of Kher gets +1/+0 until end of turn.

Legal Formats

Commander, Legacy, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Modern, Pauper, Pioneer, Standard

Rulings

(11/10/2020)
The amount of mana you spent to cast this creature is usually equal to its mana value. However, you also include any additional costs you pay, including the commander tax.
(11/10/2020)
You can't choose to pay extra mana to cast a creature spell unless something instructs you to.
(11/10/2020)
The first ability triggers when you cast Prossh, not when it enters the battlefield. This means that it will resolve before Prossh, so any Kobold tokens it creates will be put onto the battlefield before Prossh. If Prossh enters the battlefield without being cast, the ability will not trigger.