Gragas is a rare pick, especially in tournaments. His poke, sustain and escape are all pretty good, and his ult provides a little extra CC.
What are his weaknesses due to which he is not picked up often?
Gragas is a rare pick, especially in tournaments. His poke, sustain and escape are all pretty good, and his ult provides a little extra CC.
What are his weaknesses due to which he is not picked up often?
I assume that the reason he isn't chosen much in competitive play is the same reason that champions like Cho'Gath aren't chosen; they rely on skillshots to do damage. Gragas can do anywhere from 0% to 100% of his damage in a teamfight, which is a gamble many teams don't want to chance. There are many other champions who can poke with less repercussions for missing skillshots such as AP kog due to his ult's low cooldown.
It's because his Q is sometimes difficult to hit, and his ult can make or break a teamfight very easily, while it is good for saving someone's life. But his abilities can reset a teamfight. Gragas also takes a skill level to play him on his skillshots.
I think another reason why he might not be a top pick is that his cooldowns are insanely long even with 40% CDR. He can do a lot of damage (skillshots). However, if you miss them, you really can't do much for a while.
There are just a lot of other champions that do the same thing and are just much better at it. Any champ like Ahri (poke with Q, spellvamp for sustain, ult for escape), Morgana (Dark Binding/Tormented Soil for poke, spellshield for defense, CC if ult channeled), et cetera.