Spellchaser

Feat (level 4). +1 STR or DEX. Reaction, taken on its own when it pays: a hostile creature you can see within 30 ft casts a spell — you move up to half your speed toward it without provoking opportunity attacks. If you end within melee reach of the caster, or started there, your next melee attack roll against it before the end of your next turn has Advantage