Dragon 379 píše:
Assassins focus their shadow energy through a ki
focus, which is not an object they wield but a reservoir
of magical power within themselves. When using
a ki focus, an assassin taps into the power of shadow
magic and channels it into both implement and
weapon attacks.
You can imbue your ki focus with magic as if it
were a physical implement. When you have a magic
ki focus, you can add its enhancement bonus to the
attack rolls and the damage rolls of assassin powers
and assassin paragon path powers that have the
implement keyword. You can also add its enhancement
bonus to the attack rolls and the damage rolls
of any weapon attack you make using a weapon with
which you’re proficient.
You can also use a weapon with which you’re proficient
as an implement. While wielding the weapon
as an implement, the characteristics of the weapon
you use—proficiency bonus, damage die, and weapon
properties (such as defensive or high crit)—are irrelevant
to your implement powers.
If you have a magic ki focus and wield a magic
weapon, you choose before you use an attack power
whether to draw on the magic of your ki focus or to
employ the magic of your weapon. Your choice determines
which enhancement bonus, critical hit effects,
and magic item properties and powers you can apply
to attacks with that power. You can’t, for example,
use the enhancement bonus of your ki focus and the
property of your magic weapon with the same attack
power.
Zvyrazneno mnou. To je asi ta dulezita veta. takze hadam, ze na Ki-focus jde jakykoli enchant na wand, rod, orb, tome, totem a kdo vi jake implementy jeste casem pribudou.