With high base on Q, a 32% max health chunk on W, and his ult passive, that is not his problem.
Ideas
Ser Safir2 votesMaking an ally untargetable for 3 secs and getting a barrier the size of recently lost hp (potentially almost doubling his hp) is totally balanced and is the reason why he has a 50% banrate in Korea right now.
Dr Poro3 votesHe can make an ally untargetable for up to 6 seconds. Most allies are just stupid enough to end the effect prematurely.
This guy is OP in coordinated plays, but terrible in soloQ. If you play Tahm, you must make sure your allies know how he works and what they have to do.
He has a high ban rate in all regions, but that's mainly because he's new and people generally don't like ranked games to be screwed by a new champ. (They don't want a Tahm in their own team as he has a winrate below 40%). In competitive plays, I think Tahm will be pick or ban, though. His Devour is just an AMAZING ability that can be used in 3 ways: Safe an ally from death, shut down an enemy and get him in your team so he can be focussed down or eat an initiator and rush towards the enemy for a hard engage.
CreationFlaw2 votes"a 32% max health chunk on W" Literally fucking hell. Full cdr tank tahm kench 1v1'ing people is a little depressing
Diananmen Square1 votesNah, you need to try this.
Top lane 
and go first item BoRK. You'll 1v1 pretty much anything.
Earl Eulrich1 votespretty much that. the dmg+cc combined already allows him to even 1v1 kill irelia or riven if given the same amount of gold.
Shroom Junkie1 votes[{quoted}](name=The True Bard,realm=NA,application-id=3ErqAdtq,discussion-id=ZXljEOj6,comment-id=,timestamp=2015-07-18T02:10:28.550+0000)
a 32% max health chunk on W
Well, to be fair, magic resist is a thing. With enough, which isn't too much(I think its 100) you could turn that 32% chunk into a 16% chunk. Even more can potentially turn it into 10%, or 5%(or is there a maximum damage reduction?).
But yeah, its pretty bad, even though it is only one target and requires 3 hits, 32% max health is a lot, even 16% is.
UPfreely1 votesit would be nice if they fixed the bugs on his devour. feels like half the time i eat something it just falls out of my mouth doing nothing.
