No More GMO's!

Name: Grow
Rank: D (weak)
Description: When this species of wyvern is threatened they use the 'Grow' ability to turn from their little selves, to a much much much bigger self that displays their teeth immaculately. This ability not only makes the wyvern itself larger, but also scales its natural abilities to match. (Strength increases so the wyvern can actually move) Damage output remains the same.

Shadow grows from being 1ft 7inches 3inches in diameter, to 40 ft long, 3 ft thick, 60ft wingspan (this is proportional for flight)
This will increase at the following rate:
Strong Rank: 50ft long, 4ft thick
Legendary Rank: 60ft Long 6ft thick

A real world size reference would be twice the length between the home plate, and 1st base in a regulation sized baseball field. This is the length for Weak rank version.

Duration: Two posts, or until 20% of max HP in damage is taken whichever comes first
Cooldown: 4 posts
Strengths:
1 Shadow can be used to fly Kateri into battle, or to pick up an opponent and throw him/her to the ground while this ability is in effect
2 Makes Shadow a lot bigger, meaning he can smash large objects (within reason of course) and wreak all sorts of havoc on the enemy
3 Those teeth get larger just like the rest of him, as if the bone helmet isn't intimidating enough with those things staring an opponent down. (The opponent needs guts to take on Shadow in growth mode)

Weaknesses:
1 Stealth is impossible at this point.
2 Shadow has a harder time dodging attacks when she's so flipping big
3 After Shadow takes 20% of max HP in damage the ability wears off, and she reverts to his standard size
4 This ability in tight spaces.... 'nuff said

Name: Ice Spike
Rank: D
Type: Ice, Offensive
Duration: Instant
Cooldown: 3 posts
Description:
Kateri pools together ice from the air around her to form a single ice crystal about the size of the average man's torso, and fires it at her opponent. This deals D rank damage, and numbs the target for 2 posts. This numbing effect increases damage received by 10%, due to the chilling of the skin making it more sensitive, and easier to break.
The 10% damage increase is to the specific area hit and against targets of targets of equal rank to the spell, decreasing to 5% against C ranks, 2.5% against B ranks, and no added damage to anyone higher then that.
Max Range: 60 meters

Strengths:
1 Has a massive range it can be fired from
2 Has a damage increasing after effect
3 Keeps Kateri at a safe distance

Weaknesses:
1 Requires amazing aim at long distances
2 Damage increase occurs after the spell impacts, meaning the spell only deals D rank
3 Can be blocked/deflected by spells of equal or greater rank
4 Not too effective against fire wizards