Gumble tweaks

[DreadKnight]

Gumble doesn't currently have the best flow/combo/utility, so it should get better defined with a make-over.

He should be a short range unit that charges into battle, being able to take quite a bit of physical damage, then popping back up to do it again or just go defensive role, supporting other units.

The passive ability should be highly boosted, making this unit a true masochist to physical pain.

The basic attack should throw candy up to a few hexagons, poking nearby enemies or feeding allies. The candy will bounce off enemies and remain on the ground. It will provide 10hp/energy.
The upgrade will shoot 2 extra candies on nearby rows. 3 hexagons range, works in 6 directions.

https://game-icons.net/1x1/lorc/wrapped-sweet.html

The advanced attack will be the current Gummy Mallet, but it will pick up stuff that it hits. Also, the upgrade will change to leaving gummy traps in the non-unit spots. Doesn't affect allies, as the gum as some sort of intelligence.

Debuff icon https://game-icons.net/1x1/delapouite/sticky-boot.html

The ultimate will be Royal Seal, being able to respawn from 7 gummy traps that are in a circular shape. It ends current turn in order to avoid any sort of weirdness. Upgrade will allow for a less strict rule, allowing there to be less traps but respawning with 10 less health for each missing one.

[DreadKnight]

Closing this in favor of 2 ability revamps: #2635 and #2547