Muddying the matter is Orcish Spy (by Daniel Gelon), which features a rather cartoony orc (or is he an orc?) with a comical expression using a hollowed-out tree as a telescope
A green sorcery for four mana, this spell provides all creatures under its caster's control with +1/+1, trample, and infect
Yuffie, Materia Hunter is a thieving skydiver in red
The fact that there is no limit to this effect triggering in a turn means that extra combat steps and double striker can really mean trouble for your opponents
Not to mention that knowing which versions of cards are cheaper than others makes it way easier to get lower price tag since youre buying the function and not the art , which can make a huge difference in some cases
Of course, the biggest upside of Zirda, the Dawnwaker is that its cost reduction applies to all permanents (see: the Basalt Monolith / Grim Monolith combos for Commander), and some artifact-based decks come very close to accidentally meeting Zirda, the Dawnwaker's companion restriction (for example, Modern Urza decks often only have Uro, Titan of Nature's Wrath as a permanent without an activated ability), so the unique wording on Zirda might open up new possibilities, compared to Biomancer's Familiar and Training Grounds, that will take time to explore