Each ultimatum is really its own payoffs, and most of them are easy to take advantage of in the deckbuilding process
Special summons are common to the point a limitation on this type of summon is barely registered, while the additional ability of this card to negate monster effects as they grow ever-more-important in the current meta make this even more useful than the spell/trap negation of Solemn Judgment
Both are starter cards, but since they tend to compete for space with Power Vice, I think you should choose one or the other
Outside of Commander, you can play it in multiples
In the context of Pokmon cards, 'holo' simply means a card with glittery foil finish on the art
3 Phara The Primordial Goddess (Starlight Rare) $285.14 There's a $100 jump up to this next card, Phara the Primordial Goddess, and the value of this card has been incredibly steady with no rises or drops to speak of at the time of writing