mtg draft cards the Smart Way build 40 Cogwork Librarian MTG - Magic:

These nine cards included cards we'll see later on this list, including Time Walk, Timetwister, and the infamous Black Lotus, but five of those nine were simple artifacts that merely provided one additional mana

Nowadays, Standard legal cards printed with the same effect come in at a cost of five CMC (converted mana cost)

Well, when Wizards of the Coast wants to print more Dungeons and Dragons -themed Magic cards, they can design the cards, fire up the printing presses, and go to town as much as theyd like

Otherwise, its a vanilla four mana 4/4

Its even possible that a better answer exists or that Arcades players are fine with just how the linear build works