12 Jul 2019
Hybrid mana symbols are treated as the actual symbols, not as either of their two components individually. For example, {B/R}, {B}, and {R} are three different mana costs.
12 Jul 2019
If you return Embodiment of Agonies from your graveyard to the battlefield, its last ability counts itself.
12 Jul 2019
The mana cost of a split card is determined by its two halves combined. For example, the mana cost of Fire//Ice in your graveyard is {2}{U}{R}, the same as the mana cost of Ral's Outburst.
12 Jul 2019
Alternative costs, additional costs you could pay, cost increases, and cost reductions are all ignored by Embodiment of Agonies.
12 Jul 2019
Embodiment of Agonies checks the mana symbols in a card's mana cost. For example, a mana cost of {X} is different than a mana cost of {0}.
12 Jul 2019
Every Magic card has either no mana cost or exactly one mana cost. A card with no mana cost is never counted by Embodiment of Agonies. A card with a mana cost of {0} is counted.