Walling is a good tactic, but if you are too slow you will be caught by the Napalm's debuff and stun. I prefer using range if you want to beat them. Ranging puts you out of their Napalm range, and gives you more chances to land a lash to release skills. In my opinion, walling is better used for either starting a match to waste or as a last resort move when HP is low. Happy gaming.
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