Really interesting balance decision desu.
This card wouldve been played IN EVERY CRAFT DECK.
For example sword would play this for emblem that creates 1/1 rush officer every turn
abyss would play this for emblem that creates 1/1 skeleton every turn (for shadows)
forest would play this for emblem that creates 1/1 fairy every turn
etc

But for rune? its just silver card they will use 1 of in their deck