There are many cards that trigger self-mill as soon as they enter the battlefield, or look at the top cards of your deck and put one in the hand and the rest in the graveyard
These cards solve fundamental problems like mana consistency, card advantage, and threat removal that every Commander deck faces
In Jafars card art, he seems to be using the power of a Lore item to control ink to wish himself into being
When Urza, Lord High Artificer enters the battlefield, create a 0/0 colorless Construct artifact creature token with This creature gets +1/+1 for each artifact you control. You can also tap an untapped Artifact you control to add one Blue mana, and you can pay five to shuffle your library and then exile the top card of your library, then you can cast it for free until the end of the turn
Back then, Megamorph dominated Standard, with cards like Deathmist Raptor and Whisperwood Elemental making morph strategies essential