Prowess triggers when you cast a noncreature spell, while the spell you just cast only checks whether Ferocious is true as it resolves. Since the trigger goes on top of the spell and resolves first, this generally works out well for you!
Category: Triggered Abilities
Eidolon of the Great Revel vs. Delve spells.
Delve doesn't actually reduce the cost of a spell; it just changes how you can pay the cost. The converted mana cost of the spell will remain whatever is printed in the top right corner no matter what!
Courser of Kruphix and Fetchlands
All this week, we’ll be covering one specific card: . It’s a commonly played card, and the semi-unique ability it has leads to lots of interesting rules interactions and questions. Every day this week, we’ll cover a different one! Today we’re covering how it works with fetchlands such as , but this also applies to […]
Rattleclaw Mystic and casting spells (it’s not a mana ability)
Rattleclaw Mystic's "turn-face-up" trigger produces mana, but it isn't a mana ability. It uses the stack and can be responded to.
If Narset dies during combat, you can still cast the exiled cards this turn.
Narset's triggered ability grants you the permission to cast the exiled cards that turn, so she doesn't need to stick around for you to cast them after combat.
Heart-Piercer Bow with Act of Treason
Heart-Piercer Bow has its own triggered ability, which is controlled by the player who controls the Bow, no matter who controls the creature its attached to. This can be a little confusing with Act of Treason, so read up on that interaction here!
Howl of the Horde’s Raid ability
Howl of the Horde only creates a second delayed trigger if you attacked before you cast the Howl. It doesn't make a delayed trigger automatically that checks whether you attacked later on in the turn.
Meandering Turtle and Act of Treason
Meandering Towershell's trigger uses the wording "your control" which is distinctly different from "it's owner's control." That means it's pretty easy to take control of the Turtle permanently with thinks like Act of Treason!
Ashcloud Phoenix won’t come back if it’s face-down when it dies.
Ashcloud Phoenix isn't as difficult to kill as you may think. It will only trigger to come back if it's face up before it dies.