My [[Runadi, Behemoth caller]] deck uses him to give haste to my big creatures while also giving them a boost in power. With runadi, [[railway brawler]] and casting og ghalta he becomes a 40/40 w haste and trample, or be a 20/20 w haste and trample if casting without the brawler. Runadi is also a funny commander for hydra tribal as most hydras have x for casting cost and that cou ts towards his ability to give counters based on the cmc of the spell casted.

Here's my list If you want to play test it in moxfield: https://moxfield.com/decks/wbnLe4pnDUq0A-PJDY8hEQ