SC2Mapster

Not to familiar with a HLW but I would venture to guess that some slowing abilities would be useful, so I'd suggest a frost hero. This unit would be used mostly for ranged crown control but would have a decent single target combo. Would love to see/have this unit to use in other maps, like co-op RPGs (e.g. Elements remake from SC1). Here are a couple of ideas for the frost hero's abilities:

Default abilities

• Default ranged attack, shoots snowballs at target
• Hammer, smash a target with a melee hammer for minor damage, major damage if unit is frozen solid.

Learning paths, incase abilities develop over time

• Ground control

1. Trail of Frost, leave a trail of frost behind you as you walk which will slow down unit movement. Activated aura and constant energy drain.
2. Ice Sheet, lay down a sheet of ice and charge to target unit - great for going in for a quick hammer smash.
3. Ice Slick, pool of ice to reduce movement speed.

• Solid Ice

1. Wall of Ice, create a wall in front of you that blocks movement, cool down coincides with wall's duration so only one wall can be up at a time.
2. Freeze, freeze multiple units in a block of ice.
3. Frost Shield, encases the caster with a layer off ice to ward off physical attacks. The frost hero is not suited for constant melee combat.

• Projectile

1. Icicle Bolt, moderate damage to target unit but minor damage if unit is frozen solid.
2. Snowball, toss a giant snowball at target area for minor splash damage
3. Frost Blast (requires Ice sheet and Freeze), moderate damage and freeze target unit with an ice slick splash to slow nearby units.

• Summon Friend

1. Snowman (requires Snowball) immobile unit that shoots snowballs (default hero attack) like a personal turret.
2. Ice Marine (requires Wall of Ice and Icicle Bolt), a mobile that shoots bullets of ice
3. Yeti (requires Frost Shield), melee combat unit with an PbAoE that stuns nearby units.