Please buff the Valk more
I really tried to like this troop. I really did. It is stuck in a place where it doesn't have a good use. The problems that I currently see with the troop and possible solutions are as follows:
1. It moves so fast that it routinely moves ahead of tank troops.
This is not necessarily a bad thing, but even with high health it is not high enough for it to be a real tank even at high levels. Each upgrade level doesn't really made a huge impact on her hit points either. It is the same difference between a lvl 1-4 giant with 100 hit points. This doesn't motivate people to max out the troop. If anything have the first level be 100 and each level increases by a factor of 50. So lvl 2 valk buffs by 100 hit points, lvl 3 goes up 150, lvl 4 goes up 200. That way when people spend more dark elix they are getting a bigger benefit that is noticable like Giant 5-6 for max level. If nothing else, make the troop consistent with Giants and Wizards where the troop gets progressively bigger buffs at each level.
2. It has a strong attack, but the attack frequency is so slow that it minimizes her use.
She doesn't have a strong enough attack to effectively take out buildings and attacks so slow that it takes a long time to destroy items. An increase in frequency of her spins or even a consistent spinning action where she gives out damage much more frequently would be very helpful.
3. Her attack starts out fairly high, but doesn't improve enough at later levels to motivate users to upgrade.
Even at level 4 she only has 124 DPS, the same as a lvl 3 wizard... but she doesn't shoot over walls. When given the choice to wait the same 8 minutes for a wizard, the choice is simple. The wizard gives way more DPS after lvl 3 and can shoot over walls. The wizard also keeps rewarding you more and more each level that you increase with an exponentially higher DPS until lvl 5. This is basically the same issue that I have with her tanking ability and her DPS should be getting progressively bigger buffs at each level.
If the comparable normal elix troop is the wiz, then the wiz is much better. This is in stark contrast to the comparable troop for the minion, the archer where the minion is clearly better. The comparable troop for the giant is the hog and the hog is clearly better. This is backwards for the valk. The Wiz is the better troop because it brings a stronger attack and this is what can improve the valk. Buff that up and don't be shy, make the buff be on par with the strength of the wiz, but without the problem of having no hit points. That would make the valk used more and have people be motivated to upgrade it.
4. Her graphic is simply too small
This is just purely aesthetics, but people like to see the troop change and become more cool at each level. I would like to see her increase in size with each level that she is upgraded so she doesn't look like a spinning archer out there. Something like what was done with the Pekka would be nice where it is notably larger when maxed out.
5. Her niche isn't as useful as other troops
Her AI does allow for her to hit multiple buildings, but the range is too small. If this was increased by a half space or possible a full square and hit more objects close to her it would be a considerable buff. It is difficult to find a base layout that is favorable to the troop, so it tends to be ignored. If her range of splash damage was increased it would help buff her considerably.
6. Have her target defenses
I know this doesn't match up with the wizard, her major comp in elix... but she should target defenses or another specific troop as a preferred target. If she targeted defenses as well as splash damage, then we have a troop worth making there.