As long as you aren't running a Stax deck that is actively limiting your opponents from casting multiple spells per turn with cards like Winter Orb I think you'll get enough value out of Mangara to justify its slot
(However, if it's still in the graveyard at that time, it will count itself, as it is very much a hot card.) If another effect modifies how much damage your hot source would deal, including preventing some of it, the player being dealt damage or the controller of the permanent being dealt damage chooses an order in which to apply those effects
Probably not ready for Modern primetime, but theres always something you want to drop on the last end step before your turn in Commander
The alternate art forms of certain MTG creature cards are glitched in such a way that you don't see their power and toughness, just a strange symbol
Rograkh, Son of Rohgahh was first released in the set Commander Legends, illustrated by Chris Seaman
And we definitely want new players to be able to cast their spells
