If the enchanted creature gains an ability after Duskmourn's Domination becomes attached to it, it will keep that ability
Images are digital renderings and not actual cards
Although there is only a single Hyena character in Lorcana at the moment - Shenzi, Hyena Pack Leader - there are sure to be more added in the future, thereby making this ability more useful
Mono-white decks likely have space for it, but there are better things to do with this much mana most of the time, including casting other angels
It's extremely useful as it can be used to replicate a more expensive spell for just two mana
They also mostly have harmless effects in play: Greed in the black castle and Sylvan Library in the green (the computer spends all its life and mana drawing too many cards), Leviathan in blue (the computer will laughably strangle itself sacking its islands to that), Elder Land Wurm in white (trades with Juggernaut, fly over it with Hyppie, or just Paralyze it.) The scary one is Mana Flare in the red castle, which plays a little too well with the red decks powering up X damage spells
