Increase unit's max life

Now here's a tricky one:

My Skeleton Hero has an ability which smelts together up to 15 of your own skelletons into a big one. For each Skeleton he is created of the Big one should get 200 hitpoints and 10 damage.

Everything works as it should already except for the Hitpoint increase.
I gave him the Life Bonus ability from the Item 'gem of health' as unit ability with 15 levels, and set its level to the number of units he was smelt of (and no it can never reach more than 15 - that's not the mistake) but he always has only 201 hitpoints which means that he gets only 1 level of the Ability (plus 1 base hitpoint so that he doesn't die right away).

The next thing i do will be setting the base max health to 3000 - what's the maximum of what he can reach, and reduce his healthpoints to (X) depending on how many units he's made of - that works but only one small thing disturbs me, It seems like he was damaged already when he was born because the health he has is less than he can reach.

I will take this if there is no other way but i thought perhaps someone here finds a way I didn't think of to make his maximum health variable.
I don't want to make 15 different units - that's kinda ...

anyway thanks for the help in advice.

It should work. Check that level 15 of the ability really gives him 3000 bonus hit points, and output the level of the ability he has to check whether he really has level 15 of the bonus health ability.

Some item abilities refuse to level properly. The use of multiple abilities is required. Adoption of a bonus mod is suggested.

Make sure he has the ability :)

Well If he has 300 life he should have it.

Oh comeon now. Use the BonusMod. You cannot use the Life Bonus with levels, it wont work. Vex has it in his InvX system, just import it from there. Then just make a trigger to set the HP to a value times the number of units.

sorry for the late reply. I just was abscent for some time.

anyway.

I don't like to take things from others into my maps. If i dont understand them myself but i guess i will look into this Bonusmod. thank you.

There is an easier way, make an item with an ability based off manual of health that gives 200 bonus hp. Make sure the item has no special effect, then on creating the skeleton run this trigger:

Make sure the unit doesn't have another inventory ability, (even one that needs research to work like Backpack), it is important you use Inventory (Hero) or a custom inventory skill that allows the unit to use the item. By the way, you might want to set the base HP of the Skeleton to 200, and add one less item (just put "from 1 to (numskellys - 1)" in the loop). That extra 1 hp could be anoying otherwise :)