Hey, /vp/. I'm new to competitive battling and I am looking for tips on building a competitive team. I got a good bred Blaziken, Garchomp, and Absol. But, I realize they don't make a very good team. I want to make my tem centered on Blaziken. I'm thinking of replacing Absol with something else, but I don't know what. I need you guys' inputs on this and their movesets and items.

Current stats:
Blaziken w/ Blazikenite
Adamant
Speed Boost
Max IV are HP, Atk, Def, SpD, and Speed
252 Atk/Speed, extras on HP
Moveset:
Protect
Earthquake
High Jump Kick
Flare Blitz

Garchomp
Item?
Adamant
Rough Skin
Max IVs are HP, Atk, SpA, SpD, and Speed
252 Atk/Speed, extras on HP
Moveset:
Swords Dance
Outrage
Irom Head
Earthquake