An interaction that has existed in the game since the very beginning is that if you control all four basic Totems from Totemic Call, then you can't use your Hero Power again until at least one of the Totems are destroyed.

Totemic Call Card Image

Healing Totem Card ImageSearing Totem Card ImageStoneclaw Totem Card ImageStrength Totem Card Image

I still pay my respects to Wrath of Air Totem.

As of the most recent patch though, Lead Final Designer Aleco Gereco confirmed on Twitter (or rather... X, thank you Elon Musk) confirmed that this change is intentional and you now can continue to keep summoning Totems even if you already control all four of them. It's difficult to determine exactly why this limitation existed in the first place or why Blizzard felt the need to change it just now after all this time, but if you're a Totem lover who's been frustrated at not being able to press that button when all four Totems are in play, then you can rejoice!

Quote From Aleco
It's true! This change should be live with the 27.0 patch. This interaction might not come up super often, but when it did come up in the past I found it to be super frustrating. The whole team was very on board for this change and I'm very happy to see it live!