Paladins are designed to be near 0 DPS tanks. Edit: SF has 20 power, KoTC tree has 20 power, and Vangaurd tree has 19 power with shield use. All three basically suck for dps, especially clearing groups.
If you want a balance of offense, you will want to multiclass for another classes offensive tree.
For example, 5 ranger DWS allows 135 ranged power built up with aimed shot, and 7 VKF allows using that power on daggers.
A balanced paladin build is then 5 ranger, 14-15 paladin (Vol if able), 1 rogue or arti?
Get SWF at first level before ranger autogrant TWF at second level locks it out.
Put points into DWS for ranged power, aimed shot, which you will use with a repeater to multi-proc
Put points into VKF for ranged power to daggers and fan of knives, which also benefits from impulse/kinetic lore/ranged power.
Grab some cleaves, or better yet start as a SDK and get the triple hit racial cleaves
Triple aimed shot as you close in, swap to dagger/orb and cleave, proc 100% spell crit offhand versatility, throw Fan of Knives to execute cleanup everything.
Harper Int to hit/dmg/KTA is better than Charisma because it also fuels trapping skills and spellcraft.
See
PO build in arti forum.
Warning: This is what happens when someone non-uber makes a pure 20 melee paladin. or
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