Slime Builder
Model:

Icon: Something better then normal sludge minion icon. . .
A builder thats different from the rest.....
Whenever a building dies, it spawns a Defender...
Stats!
Builder:
Hp: 250
Armor: 1
Speed: Normal
Build Style: Orc
Lumber per swipe: 30
Max Lumber Capacity: 60
Escape Abilities:

Toxic Skin: Gives a 10% chance that the attacker will be stunned
Teleport: With a different icon

Defender
Give alot of feed
Costs: 25 lumber 5 food (except for defenders that come from buildings)
Model: Dalaran Reject
Icon: Dalaran Reject
Stats:
Attack 20
Range: (same as towers)
Abilities:

Combine: Two defenders combine into a Super Defender
Super Defender
Attack 60
Same as defender, except stonger.

Combine: Two super defenders can combine into a Ultimate defender
Ultimate denender
Attack 100
Same as defender except VERY, VERY STRONG!!!!!!
Buildings:
Shelter: Can build Defenders (whatever model fits)
Slime Pool: provides food ( 10 ) Attacks
Model: Defiled Health Fountain
Icon: Defiled Health Fountain
Reasearch Center: Model: ? Icon: ?
Reasearches...
Splice: (upgrades 4 times) Costs: 100 lumber, 150 lumber, 1 gold 200 lumber, 5 gold 250 lumber. Allows buildings to spawn 1 more defender when they die.
Slime Coating: Reduces 10% of meele attacks done to the slime builder
Health upgrades....
Normal Upgrades...
Merchant
Advanced Reasearch Center: Model: ? Icon: ?
(undecided name) : (upgrades twice) Costs: 20 gold, 300 lumber Makes dead buildings spawn Super Defenders insted of Defenders, Ultimate Defenders insted of super.
Hardened Slime: ( 5 gold, 250 lumber ) Give 2+ armor to the builder, and allows you to build Hardened Blob Walls.
Blob Wall , Enchanced Blob Wall , Reinforced Blob Wall , Mega Blob Wall , Hardened Blob Wall
Model: Forgoten one
Icon: Forgoten one
Hp: 125, 250, 500, 1000 (last upgrade costs 10 gold 500 lumber, and requires upgrade)
Armour: 2, 4, 8, 10, 20
Ultimate Towers
Sludge Tower
and.... another one... (ideas?)