I'm planning to design a Legacy Item incorporating a bunch of support-type abilities for an archer. The base item is going to be a +1 chahar-aina (or a buckler, if the first is not allowed) using Table 4-3 for the costs (total of -3 skill check penalties and loss of 20 HP). Basically, it'll be a piece of armor in an unconventional slot with the intention of uniting a whole bunch of defensive and utility powers.
The final effect is a sentient thing which can spam various SLAs at will and remain active in an AMF. It makes its wielder immune to surprise and also includes other fun immunities such as soulfire and so on.
L6 Telekinetic (A)
L7 Magic Cipher (A)
L8-10 Scorching Ray (at will) (C)
L11 Cunning (D)
L12 Glitterdust (D)
L13 Intelligent Item Legacy (D)
L14 Slippery Barrier (D)
L15 Uncanny DOdge (D)
L16-17 Mind Blank (H)
L18 Enhancement Upgrade (G) (+1 to +6)
L19 Enhancement Upgrade (G) (+6 to +8)
L20 Enhancement Upgrade (G) (+8 to +10)
Critiques, anyone?