Xi IIRC has its w3 range increased as well as reload rates for w2 (correct me if I'm wrong) has been improved.
Its not a bad paper; can tank a few hits with the I-field barrier, and deals decent damage. Its not that good though since other papers can deal significantly more. I think it is justified since its along the lines of Pazabi and Meteor Freedom.
Tier 3 papers are either tanky or deals good damage, or sometimes both but has a difficult playing curve.
爆ぜろリアル！ 弾けろシナプス！ BANISHMENT THIS WORLD!
00 Raiser, 00 7S/G, V2AB, Infinite Justice, HWS v, Master Fuunsaiki, God Fuunsaiki, SR Sazabi, Crossbone X1 Kai, X2 Kai, Harute (Final Mission Type) Stargazer, Crossbone X3, Sazabi
Upcoming projects: Arios Ascalon (100% Complete!), Crossbone X1 Skullheart (100% Complete!)
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Ship 1 - Feoh