>>33577455Yanmega, Ninjask and Scolipede use speed boost and they are perfectly balanced they also see frequent use in their respective tiers. You only hit fucking trapinch outside of the dug line by banning arena trap.
Digglet is also arguably a better substitute to Dugtrio than most people give it credit for. And it was used during the dugtrio suspect. You also allow them to be used in lower tiers this way. Banning arena trap was the right call, same with shadow tag.