Spoiler
Strength +3: Increases your attack power by 3.

Ability: Steal: Potentially steal a Power-Up from an enemy. Has a 2 turn cool down.

Spell: Icicle shot: Shoot a razor sharp icicle at an enemy. Water elemental. Costs 5 MP.

Speed +3: Increases your speed by 3.

Equip: Bow and Arrow: Bow and arrows that can be used from range. Comes with 5 arrows. +2 ATK.

Link: Links two Power-Ups together to create a new Power-Up.

Ability: HP attack: Sacrifice some HP to temporarily increase attack power. Can choose how much HP to sacrifice, every 5 HP increase ATK by 1. Attack increase only effects next attack Has a 1 turn cool down.

Defense +3: Increases your defense by 3.

Ability: Hit all: Divides attack to hit all enemies on screen. Has a 2 turn cool down.

Spell: Earth splinter: A shard of compressed ground strikes up to hit an enemy. Earth elemental. Costs 5 MP.

Magic +3: Increases your magic power by 3.

Equip: Battle shield: A basic shield used by soldiers. +2 DEF +1 ATK.

Ability: Toxify: Has a chance to poison an enemy. Has a 2 turn cool down.

Spell: Heal: Basic healing magic. Light elemental. Costs 5 MP.

Equip: Iron armour: Sturdy Armour that offers good protection. +4 DEF -1 SPD.

Spell: Fire ball: Shoot a blazing ball of fire from your fingertips. Fire elemental. Costs 5 MP.

Health +10: Increases your maximum HP by 10.

Equip: Giant hammer: A large, heavy hammer used for smashing peeps. +4 ATK -2 SPD +2 Bonus damage to machines.

Link: Links two Power-Ups together to create a new Power-Up.

Equip: Gnarled staff A old staff which emanates a magical aura. +3 MAG +1 ATK.

Equip: Katana: A slender blade from a distant land. +3 ATK +1 SPD

Spell: Dark pulse: An explosion of evil energy attacks the enemy. Dark elemental. Costs 5 MP.

Mana +10: Increases your maximum MP by 10.

Spell: Mini tornado: A small tornado rips into the enemy. Wind elemental. Costs 5 MP.

Ability: Attack break: Has a chance to lower an enemies attack power. Has a 3 turn cool down.

SpoilerStrategy? what's a strategy?

SpoilerAbility: HP Attack | Link | Strength +3 | Equip: Katana | Spell: Dark Blast

This build is focused on guerilla-style combat and single-target damage.
The core of the build is HP Attack, which allows me to do nominal amounts of damage at the cost of my own survivability. It's linked to Strength +3 in the hopes that this will act as linking Heal and Magic+ did the first time around. Plus there's the extra damage regardless of what the Link does.
Katana's equipped both so my base attack's not abysmal and so I can escape a bit easier after killing myself.
Dark Blast is present so my MP doesn't go to waste, so we have some source of elemental damage, and so I can soften up enemies while closing in and running off.

Other options include:
HP Attack-Link-Health +10, for slightly more survivability/HP Attack ammo, and in the hopes of reducing the cost of HP Attack.
HP Attack-Link-Mana +10, because MP Attack. If that doesn't happen, though, the bonus Mana's a bit of a waste, which is why this'n's not at the top.
Heal, but I figure Heal would be better spent on someone not designed to run up to enemies and proceed to stab themselves in the foot.
Katana-link-Toxify, so if my HP Attack fails to kill them, there's a chance they'll get offed by poison.

Due to the endlessness of the possibilities, I opted to focus on HP Attack to make shit a bit easier. Though... in retrospect HP Attack doesn't really have an appealing cost-reward ratio. Whopf. I'll just pray for a dedicated tank and/or Healer. Or for MP Attack to be a thing.

While the above is my preferred build, I can make some other builds if you like. Would you prefer just the one? 'Cause I had this other one I kinda liked too...


Also Jack because Jack is still the best name. Besides, what better to call an empty shell with unlimited potential?

SpoilerThe linked weapon is something I'm intrigued by, as it would presumably add a magical element to any physical attack, thus giving Greg the ability to deal with rather physically strong enemies without resorting to "help me, oh mighty wizard around 5 rooms away!" The defense and strength are each to help shore up deficiencies in his physical stats: his speed suffers terribly, but he's strong and can take hits without immediately needing to heal, again giving him survivability.

A few other options, while still keeping the weapon (I like the idea of a caveman swinging a club around, sorry,) would be speed +3 to compensate for the loss of speed from the weapon, heal to improve Greg's ability to survive on his own, or dark pulse to deal damage that doesn't involve being nest to the enemy.

SpoilerHeal + Steal = Drain Life (because nobody f*cks with the White Mage)
Heal + Toxify = Cure Poison
Toxify + Link = Toxic Ability (Small chance of causing poison when using an ability)