Like most Magic: The Gathering cards, the value of Bulk Up depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Secrets of Strixhaven Mystical Archive)
The best Fabricate cards in Magic: The Gathering , ranked by EDHREC popularity a real-world measure of playability across Commander, Modern, Pioneer, and all formats
If it only affects lands or only affected creatures, both would be excellent
Add Orc tribal support
The varying number of Rare or Mythic Rare cards provided quite an exciting experience when opening packs, especially if you were lucky enough to find the maximum number of cards at the Rare or Mythic Rare level
Here's all you need to know about YuGiOh card sizes : How big is a YuGiOh card