NAME: The name is up for discussion, didnt come up with one.
Here are some spells that i believe are appropriate for a "witch":
Fire-based attack which makes the "witch" shoot out a fireball at a single target dealing moderate damage. Medium range.
Upgrading this spell increase damage, range and in the higher levels (4-6),reduce ap cost (low-level spell)
Transform single target into a frog for a small amount of turns (1-3 depending on lvl of the spell), the transformed unit cannot use ap, but can run using mp.
Very long cooldown (maybe 20) and high ap cost so the spell won't get too op. (low-medium-level spell)
Basically a summon skill that summons a crow. The crow acts like a tofu, it hits and runs, and can be used as a distraction, but has a bit higher hp and damage. (high-lvl spell)
Leveling this skill results in the crow having higher damage, mp and hp. (exactly how much bigger is up to the developers to decide to make sure it wont get too much or too little)
Summons a huge, resistant and immobile pumpkin that is used for blocking. Increasing level causes the pumpkin to have more hp, and decreases cooldown of summoning it.
In higher levels (5-6) decrease ap cost. (mid-level spell)
Long-range spell that makes the target being unable to get healed. Lasts around 3-5 turns at the first level. Pretty long cooldown.
Leveling the spell will increase the turns the spell lasts OR decrease cooldown. (mid-level spell)
Throw a potion-flask with acidic chemicals at a target area creating an AoE glyph (pool) from the splat . If you step on the glyph, you will get acid on yourself, that will act like a poison that makes you lose an amount of hp each turn (earth damage). (even when you stepped out of the glyph) Standing in the glyph makes you suffer full damage, while stepping out of the glyph makes your damage taken each turn get reduced by 60%. Leveling the spell makes the damage bigger, and perhaps even bigger AoE in the levels of 5-6. (mid-high-level spell)
Smash: Damage a target in melee-range with earth-damage by swinging your broom at it. 1-2 range, increasing the level of this spell increases the damage, and in later levels, decreases ap cost. (low-level spell)
Fly: Teleportation skill, by flying on the broom. Long cooldown and long distance. Increasing level in this skill/spell increases range and decreases the ap needed. (high-level skill)
I'll come up with some more spells later.