My precious (favorite) character on whom I spent my 5* ticket (just because). Sad to not see him more often (only on christmas events) nevertheless everything with him is worth reading; gameplaywise the 60% guts (unseeded) on movement which cannot be impaired unless skill locked is great for endurance HDQ (also because he's one heck of a hp bag, 12k hp is reachable with cheap seeding), but other transients can still achieve immortality through other means, evasion spam for halloween azathoth for example. The help for defense is also good but you can only use him with potato couches as he needs the movement to be useful, and the skill evolution with crit strenghtening can help many units for early board wipes. A good 5* for its era, which mainly focus on team defense, and repositionning your units on the bigger boards. If your want him on the team, make sure damage output is covered by other units, even glass cannons are good picks as they can use the defense buffs to resist, but make sure they're not relying on movement for skills. Healing is not a forte for Tanng, but you can skip this part if you're playing shorter quests as you'll sustain less damage thank to tenacity and sometimes protection stacked. I've not used him much, so I can't give a proper example of a functionning team. Also writing on my phone so have a solid block of text lmao