Knuckles (Defense)
Geddanium Crystal (Corrosive, because it's not resisted much.)
Geddanium/Lucinite (Defense)
Geddanium (Vampiric)
Take less damage, heal for half of the damage you deal.
Dagger/Spear/Whip (Evasion)
Whatever (don't care about damage type)
Adjite/Savicite (Evasion) OR Oxonium (Shields) OR Satyrite/Dull Behemoth Crystal (HP)
Satyrite (no extra Flag, better base stats)
The ultimate Stat Stick.
The semi-random stat bonuses are annoying, though.
What Class are you testing with? Kineticists get better stats.