Akali N.O.V.A. Marauder 2g

[Link to Champion Page]
Akali's Star Strike ability repositions herself on-cast, aligning next to her target to strike the most enemies. She throws Kunai that pierce through them, removing some of their Armor, and even more when she Crits.
This goes hand-in-hand with her N.O.V.A. effect which grants Precision (Spell Crit) to allies. Combine all of that with Marauder's Omnivamp and you've got a real threat that can ambush enemy lines.
Bel'Veth Primordian Challenger Marauder 2g

[Link to Champion Page]
Bel'Veth has three excellent traits that all provide great bonuses even with only two pieces. Her Tidal Slashes ability unleashes a flurry of slashes at the target, scaling quantity based on Attack Speed (great with Challenger).
Overall a great pickup to stay flexible early on.
Urgot Mecha Brawler Marauder 3g

[Link to Champion Page]
Urgot is the "Unstoppable Dreadnought" that fires blasts towards enemies that come within his proximity (with a cooldown). Between Brawler's Health, Marauder's Omnivamp, and the Mecha trait, he has great tank potential.
Whether you decide to invest into Mecha or not, Urgot's traits suit him well and definitely make him worth considering.
Master Yi Psionic Marauder 4g

[Link to Champion Page]
Master Yi deals bonus physical damage with every third strike. When his Psi Strikes ability is used, he enters a short meditation before reaching his Psi-State, granting Omnivamp, Attack Speed, and movement speed.
Not only that, but he fires psychic projections at random foes in range, dealing physical damage. All of this fits very well with Marauder, allowing Yi to become a carry with built-in sustain.
Fiora Divine Duelist Anima Marauder 5g

[Link to Champion Page]
Fiora passively exposes Vitals on her enemies, allowing her to dash towards them and strike for bonus true damage. These hits also heal her for a percentage of the damage dealt.
Once Perfect Bladework is cast, she unveils all Vitals of her target before swiftly piercing them (and passing any remaining Vitals to the nearest foe). This also creates a healing aura that aids all allies within.
Beyond her impressive combat abilities, Fiora also heals Tactician health based on a portion of dealt player damage. She's an excellent combination of offense and defense.
Thanks for reading! If you want to try and come up with your own team comps for Set 17, check out our Team Builder. For a full overview on the new set, check out our TFT Set 17 Reveal Page.