Numerically, these are higher than the value cards, but in some games, the Ace may hold a higher value than any other card in the pack, even though it represents the number 1
Pokemon TCG Pocket tips and tricks Heres everything you need to know to help you get started in Pokemon TCG Pocket
Key mechanics: Haste, discard-draw (looting), burn, firebreathing (giving +1/+0), land destruction, and first strike
Spending 2 loyalty will allow you to turn any creature into a treasure artifact, which is a very fun way of removing a threat or converting a useless creature on your side of the field
As a best guess they've decided that it's too complicated and not worth the software development cost