Well there are probably some better combos assuming total freedom of talents/abilities, but things to start with:
- Monk wounds and swift strikes on any front fighter
Except that wounds wear down your health, so you'll also want higher endurance and more health. If wizard is the base (low/x4), you'd need to spend two talents to get to monk/barbarian level (very high/6). And it's not suitable for an armoured, high-Deflection fighter because they won't incur the wounds. And if you pick that talent, there's some other talent you're not picking.
- Every character with some chants, and summoning phantom every 12 sec, or any character with little dragons. Generally with chants/invocation you can pick 2+1 and be done with class.
Okay, then let's make it a requirement to take two chants per Invocation. So to get the phantom you'd need to spend three talents/abilities. Pretty significant IMO.
- Any melee attacker and rage mechanic.
Except melee attackers with low Endurance and Deflection: they'd go down like ninepins when they Rage.
Cipher focus. There should be a lot of focus, and sometimes we can nova something heavy.
Except to use Focus, you need abilities that burn it. You could spend one talent on one first-level cipher ability, but how unbalancing would that be? We could make it so that in addition to the plain level requirement, you'd need at least two powers of the previous level to be allowed a new one. So to get a level 2 cipher power, you'd need to spend 3 abilities.
- Every caster running Relentless storm
Returning Storm is a level 3 druid spell. To get there, you'd have to be minimum level 5, and have spent enough talents to be allowed level 3 druid spells.
- Caster with very high Perception, small Might and just collection of all CC/debuffs.
As above. You wouldn't be able to take any abilities at any level; they would still have prerequisites. To get higher-level spells of a particular type, you would have to spend most of your ability points building up to them.
- Paladin tank with Priest tier 1. spells in 4/encounter (blessing, arour, healing good trade)
Not possible. To get L1 spells per encounter, you would have to buy enough talents to get priest spells from level 1 through 5. That wouldn't look much like a paladin anymore.
- Any class with any caster 4/encouter spell level.
Again, see above: you seem to be assuming that I'm proposing that any character could take any ability at any level, with no prerequisites
. I explicitly said that I want to keep the prerequisites as they are: no level 5 spells before level 4 spells etc. Same applies to those per-encounter spells: level 5 spellcasting ability would be a requirement for that ability.
- Rogue with Carnage
Rogue talents don't apply to Carnage, only the primary attack. Problem solved.
- Recless Attack + Deathblows + Armour Grace on character with high survivalability.
Armoured Grace would be nice, but all that would give is a 20% faster attack speed when wearing heavy armour. Not unbalancing IMO.