The [Kuva Nukor] is the best primer, of that there is no doubt. So, what does the [Tenet Cycron] have? Infinite Ammo, fast reload time, and hefty status. No crit shenanigans here, just crazy heat stacking with a viral coup-de-grace. Optimal? No. Fun? Yes. (No refunds if you don't have fun, that's a you problem) Also, no forma needed so you can (just) get this on without needing to max out the level. A good diet build for levelling if nothing else.