Melee skills generally have the worst range, but are fast and strong, especially when taking into account type advantages. Although AoEs are rare outside of the hero skills, they often make up for it with secondary effects such as map manipulation, added delay, and various poisons. Interestingly, melee type has the widest variety of base attacks in the game. Punch is the weakest and fastest, followed by Dagger Thrust bringing up the middle ground, and ending with Bite Attack as the strongest and slowest (though still fast compared to any other skill type). Scratch and Kick are the oddballs. Scratch hits twice at medium speed, making it the only multihit base attack in the game, and Kick is actually tied for the strongest and almost tied for the fastest too.
Notable skills include:
Octopus Clutch and Love Bite: Megohime have long range and will pull targets into the range of the user's other skills.
Wild Scratch is really handy when utilized with +Damage or +Delay items, as it is one of the only cheap, multihit AoE skills.
Deadly Sting in combination with Marco's natural luck stat results in a cheap, fast, high damage skill that always pierces defense due to guaranteed crits.
Crismation not only hits a row for solid damage and added delay, but it actually steals 1 Brave point per target (up to 3 total) after damage is dealt. This allows you to hit the enemy with type advantage and steal away some of the Brave gains that they received.
Kheiron Step can be combined with items such as Futsuno Mitama and Dagda Mace to make use of the absurd number of hits for huge damage and crazy delay stacking. In addition, it's the fastest skill in the game with only 30 delay.
Nephilim and Orihalcon Punch are fast skills that both hit huge AoEs and add delay to each target. Quite handy for slowing down the enemy team.