Yes. A superior Wand such as a
Dragontooth can be enchanted with any Wand enchantment (
Player's Handbook 3 pg. 195)
If you have a
Flame Dragontooth Wand and you already have
Scorching Burst power, it means you will have
Scorching Burst as an at-will wizard power and a
Flame Dragontooth Wand power working as
Scorching Burst as an encounter power. Not very useful in this case since you will already be able to produce this effect at-will.
Superior Implement: Despite their magical origin, superior Implements aren't magic item per se, but like non-superior implements. they can be enchanted with the Enchant Magic Item rital.
Yan
Montréal, Canada