List of Utilities for Competitive Pokemon

Pokemon to obtain:
1 Pokemon with the combination of Frisk+Thief for retrieving items, normally Heart Scales ( http://veekun.com/dex/pokemon/search?move=Thief&move=&move=&move=&ability=Frisk )
2-3 HM Slaves, with the combination of Surf, Waterfall, Dive, Cut, Rock Smash, Strength, Flash, Dig, and Secret Power amongst them. Most water types learn the combination of Waterfall/Dive/Surf. For Pokemon that can learn the combination of Rock Smash, Strength, and Cut, see: http://veekun.com/dex/pokemon/search?move=Rock+Smash&move=Strength&move=Cut&move=
Flash+Dig: http://veekun.com/dex/pokemon/search?move=Flash&move=Dig&move=&move=
1 Breloom, simply due to access to Spore+Technician-boosted False Swipe.
1 Pokemon with the combination of Flame Body (preferably with access to Fly, but not necessary. Flame Body Pokemon: http://veekun.com/dex/pokemon/search?ability=Flame+Body (Of those, Moltres, Volcarona, and Talonflame learn Fly).
1 High-Level Pokemon with access to a spread move for the purpose of Horde Training. For simplicity's sake, it is better to opt for ones with 100% accuracy. Here is a list of all spread moves: http://pokemondb.net/pokebase/227676/list-of-all-spread-moves
1 Pokemon that learns Sweet Scent, for the purpose of starting Horde Battles. ( http://veekun.com/dex/pokemon/search?move=Sweet+Scent&move=&move=&move= )

Items to obtain:
All TMs available, albeit this is hard due to the Mirage Spot gimmick
1 Everstone (Locations available: http://www.serebii.net/itemdex/everstone.shtml )
1 Destiny Knot (Locations available: http://www.serebii.net/itemdex/destinyknot.shtml )
4-5 Lucky Eggs (Locations available: http://www.serebii.net/itemdex/luckyegg.shtml )
At least 1 full set of the Power Items (Bought with BP at the Battle Resort)

Set up boxes as such:
1 Box for Utilities, Pokemon that are used to catch others or obtain items or simply to house your in-game team.
1 Box of Level 100 Pokemon
1 Box for Dittos of every competitive nature (Adamant, Jolly, Modest, Timid, Bold, Impish, Calm, Careful, Naive, Hasty, Relaxed, Sassy, Quiet, Brave), with hope of having HP-specific dittos and 1 6IV Ditto
1-3 Boxes for the purpose of storing Pokemon for future breeding endeavors
1-3 Boxes for bred but not yet trained Pokemon
1-3 Boxes for the storing of fully trained, battle ready Pokemon