Holy Avenger Level 25+
The most prized weapon of any paladin.
Lvl 25 +5 625,000 gp

Lvl 30 +6 3,125,000 gp
Weapon: Axe, Hammer, Heavy Blade
Enhancement: Attack rolls and damage rolls
Critical: +1d6 radiant damage per plus, and you can spend a healing surge
Property: A Holy Avenger deals an extra 1d10 radiant damage when the power you use to make the attack has the radiant keyword.

Power (Daily): Minor Action. You and each ally within 10 squares of you gain a +5 power bonus to Fortitude, Reflex, and Will defenses until the end of your next turn.
Special: A holy avenger can be used as a holy symbol. It adds its enhancement bonus to attack rolls and damage rolls and the extra damage granted by its property (if applicable) when used in this manner. You do not gain your weapon proficiency bonus to an attack roll when using a holy avenger as an implement.