As gragas, His Ultimate R can easily be dodged by enemies who have dashes or any movement tools.

If the enemy has good positioning in lane, it will be very difficult for you to engage or use your E in the lane. This is because your E can be blocked by minions if the target is not directly behind them.

Gragas’s Ultimate R is very easy to mess up. You may want to use it aggressively to knock someone forward but instead, knock them backwards. As gragas, Its Ultimate R can easily be avoided by enemies who have dashes or tools of movement. If the enemy has a good positioning in the track, it will be very difficult for you to engage or use your E in the track. It is because your E can be blocked by minions if the target is not directly behind them.