Yo, I was thinking about a Transformer character concept, and came up with the following (general) idea:
Race: Warforged (no-brainer
)
Class: Transformer
Transformer-class is basically the druid-class (qua mechanics) with the following modifications:
1. Instead of normal (divine) spell progression, the transformer uses the artificer spell progression (limited to self-infusions?);
2. Instead of Wild Shape a transformer gains the "transform" ability. This means that instead of being able to change into a M/L/H/etc. animal, a transformer is able to change into a M/L/H/etc. siege engine (see e.g. heroes of battle, or transport machine; see e.g. PHB);
3. Instead of animal companion, a transformer gains a single homunculus (see artificer)
4. Instead of Nature Sense, a Transformer gains Apparratus sense; with bonusses on Knowledge (architecture and engineering) and Use Magical Device.
5. Instead of Wild Empathy a Transformer gains Construct Lock (see Races of Eberron);
6. Instead of Woodland Stride a Transformer gains Improved Homunculus (see Eberron Campaign Setting);
7. Instead of Trackless Step a Transformer gains Improved Resiliency (see Races of Eberron);
8. Instead of Nature's Lure a Transformer gains Repair Damage (see Races of Eberron p.132);
9. Instead of Venom Immunity a Transformer gains Immunity to Stunning (see Races of Eberron p.132)
I look forward to your input on whether this class is balanced, and/or how this concept can be improved!
Race: Warforged (no-brainer

Class: Transformer
Transformer-class is basically the druid-class (qua mechanics) with the following modifications:
1. Instead of normal (divine) spell progression, the transformer uses the artificer spell progression (limited to self-infusions?);
2. Instead of Wild Shape a transformer gains the "transform" ability. This means that instead of being able to change into a M/L/H/etc. animal, a transformer is able to change into a M/L/H/etc. siege engine (see e.g. heroes of battle, or transport machine; see e.g. PHB);
3. Instead of animal companion, a transformer gains a single homunculus (see artificer)
4. Instead of Nature Sense, a Transformer gains Apparratus sense; with bonusses on Knowledge (architecture and engineering) and Use Magical Device.
5. Instead of Wild Empathy a Transformer gains Construct Lock (see Races of Eberron);
6. Instead of Woodland Stride a Transformer gains Improved Homunculus (see Eberron Campaign Setting);
7. Instead of Trackless Step a Transformer gains Improved Resiliency (see Races of Eberron);
8. Instead of Nature's Lure a Transformer gains Repair Damage (see Races of Eberron p.132);
9. Instead of Venom Immunity a Transformer gains Immunity to Stunning (see Races of Eberron p.132)
I look forward to your input on whether this class is balanced, and/or how this concept can be improved!