By its nature, art is subjective
There's a vast gulf between Bellowing Aegisaur and Etali, Primal Storm or even Earthshaker Dreadmaw, for example
Both Dack and Jace allow me to draw more cards or improve the card quality in my hand, and they're good for a whole lot more
If future generations of Wizards employees want to circumvent the reserved list while still obeying the letter of the law, their best bet is to print new cards that serve similar roles to the old ones without being functionally identical
Both of these cards are markedly powerful for different reasons, but will synergize well together
I studied illustration and was very fortunate to get signed to an agency, that was back when I was 21, so its been 13/14 years that Ive been doing it professionally