Smogon Community - Krookodile

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HP: 95
Atk: 117
Def: 70
SpA: 65
SpDef: 70
Spe: 92

Abilities:
Intimidate: Lowers opponents' Attack one stage upon entering battle.
Moxie: Raises Attack one stage upon KOing a Pokémon.
Dreamworld:
Anger Point: Increases Attack to maximum level upon taking a critical hit.

Moves

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GBU Doubles Sets

Krookodile @ Focus Sash/Chople Berry
6 HP / 252 Attack / 252 Speed
Adamant Nature
Ability: Intimidate
- Earthquake
- Crunch
- Rock Slide
- Protect

A simple yet effective set. Earthquake and Crunch are great STAB moves; combined with Rock Slide, they give Krookodile great coverage.
Ideally, Krookodile should be paired with a Flying-type or something else immune to Earthquake. Krookodile works well as part of an Earthquake/Discharge combo, so Pokemon like Eelektross, Zapdos, and Thundurus can go very well with it.
Krookodile's other ability, Moxie, can also be useful. Intimidate is probably the better choice, but Moxie can be used if you prefer.
If you feel you need extra speed, then a Choice Scarf can also be a viable item choice. (If you do use Scarf, be sure to add on another attack in place of Protect.)

Krookodile @ Iron Ball
252 HP / 252 Attack / 6 Def
Brave Nature
Ability: Intimidate
- Earthquake
- Fling
- Rock Slide
- Protect

This is fairly similar to the previous set, but this one is obviously for Trick Room.
Iron Ball both makes Krookodile slow enough to be used with TR and gives it access to a powerful, 130 BP STAB Fling.
This set can work well with Cresselia, since it is not only a great choice to set up TR but also has Levitate.