If you're able to cheat the card into play, say with Greatfang, Okiba Boss, Parhelion starts to look much more attractive
Per MTGs description for the collection, Cast powerful spells, call upon classic summons, and even visit your favorite locations on the back of a chocobo
Whether thats just picking matching sleeves for the aesthetic, like my opting for Copper Dragon Shields for my artifacts deck theyre brown, get it
Things like Diabolic Intent and Abyssal Persecutor seem rather goofy from a character design standpoint rather than realistic and imposing
If you do, create a token that's a copy of that card and that's tapped and attacking
It is often a case of being able to have Spell Pierce and another counterspell up at the same time for very little mana yet high chances of covering everything you need them too