Has anyone designed a Druid variant that focuses on transforming to and summoning a single animal type only? I've got a player who wants to play a Wolf Druid; i.e. Druid who turns into progressively bigger wolves and only summons wolves and only talks to wolves and has a pet wolf and so on. Which seems reasonable enough, a classic fantasy archetype. Problem is, any of the Druid subclasses has much of its power in the variety of creatures it can turn into and summon and such. Has anyone made a decent "single animal Shaman"-class for 5e?