“BULK UP, BOY!”
1. Bulk Up
3. Close Combat/Earthquake/Brick Break
Bulk Up works well with Intimidate to boost your defense and it also gives you some extra power. Return is your best STAB move. The Fighting attacks are for coverage against Steel-types—Close Combat is the strongest but lowers your defenses, nullifying Bulk Up's defensive boost, but Brick Break can at least shatter screens. Earthquake has similar coverage, but Ferrothorn will be harder to get through and you'll be stuck against Skarmory and Bronzong. Both Crunch and Payback offers a way around Ghosts; Crunch comes with the higher initial base power but Payback is an interesting option because Granbull is slow and, with the defensive boost from Bulk Up, it can at least take physical hits better.
1. Thunder Wave
2. Heal Bell
“Support” isn't really the first thing one would think of when they think about Granbull, but it can do it and it may even serve as a surprise set considering most Granbull sets are about offense. Thunder Wave cripples fast things (like, say, Gengar or Mismagius coming in to block you if you don't have Crunch on you) and Heal Bell rids you and your team of unwanted status, if which Granbull itself especially hates. Return, again, is for STAB. You last attack depends on what you want to beat, unfortunately if you go with one over the other you'll be blocked by something else—Earthquake penetrates Steel-types but leaves you helpless against floating Ghosts, Crunch busts said Ghosts but then Steel-types can stand in your way. Alternatively, you can choose from some of Granbull's other support options.
“SEE GRANBULL RUN”
Ability: Quick Feet
Item: Toxic Orb
2. Close Combat
4. Thunder Wave/Bulk Up
Ursaring really does this better, being to achieve higher Speed, stronger Attack power, more bulkiness, and a much better boosting attack in Swords Dance. . .but Granbull still has it so. . .Return is STAB, Close Combat and Crunch are for coverage. Thunder Wave stops things still faster than you even with Quick Feet support, Bulk Up makes you stronger.
OTHER INTERESTING OPTIONS—
1. Fire Fang—could hit Ferrothorn and Forretress harder but otherwise is too weak to have any real use.
2. Thunder Fang—hits Gyarados harder, but is otherwise in the same boat as Fire Fang.
3. Wild Charge is similar to Thunder Fang but doesn't really offer any crucial coverage other than for frying Gyarados and maybe Skarmory.
4. Stone Edge—is a power attack, but Granbull can't do much with it.
5. Work Up—could be use on a mixed set with Flamethrower or Fire Blast (used namely for getting past Steel-types).
6. Outrage—hits Dragons the hardest and is powerful, but the confusion can be really frustrating.
7. Taunt—can stop stat-uppers, walls, and status, but Heal Bell is a better support move and Granbull's usually too slow to be a good Taunter anyway.
8. Reflect—combine this with Intimidate to make Granbull (and the team) crazy sturdy.
9. Charm—same as Reflect, except it doesn't offer team support.
10. Snarl—Intimidate curtails physical attackers, Snarl special ones.
11. A Sub-Punch (Substitute + Focus Punch) can be tried, but other things do it better.
12. Super Fang—a good move that makes physical walls that you would stand little chance against (like Skarm and Thorn) easier to break through.
13. Superpower—could be good a choice set, but otherwise stay away from it.