Psychic has garbage coverage don't really need it, You have Gengar to check and anus rape Fighting types with Dazzling gleam as well as Dark types, I am assuming your Tyrantrum has Strong Jaw so you should look into breeding him a Fire Fang and probably remove stealth rock cause he has some bad weaknesses and probably last to set up and switch Stone Edge with Ice fang and Roar with Dragon Dance all have to be through breeding though. Reason for removing Stone edge and Roar is because Strong Jaw increases Bite type moves by 50% basically they have STAB.
Fire Fang would give you Super effective: ICE - BUG - GRASS - STEEL (4)
Ice Fang would give you Super effective: DRAGON - GROUND - GRASS - FLYING (7)
Earthquake would give you Super effective: ROCK - FIRE - POISON - STEEL - ELECTRIC (11)
Dragon Dance: Ups ATT and SPEED by 1 stage.
I know you're like wtf no Stone edge? Well because Stone Edge's accuracy is 80 and a missed stone edge means goodbye Tyrantrum in alot of cases even if it has STAB you have a fuckton more coverage this way with his insane attack. Now all 4 of these moves are through breeding if you really want to do it then I would go for a Jolly Nature with the same EV's and I propose this set really if you take a Scolipede as your 6th.
Scolipede will be there for support using Baton pass, have Scolipede use Swords Dance and will gain a speed boost after its first turn and Baton Pass it to Tyrantrum. A +1 Speed boost Tyrantrum with the above set will now out speed base 130 Speed pokemon with correct nature and EV's and has +2 Attack stages this fucker is ready to rip off everyones mongolian ass brackets and if you predict a switch on your Tyrantrum use Dragon Dance and it's Gameover, Dragon Dance is also good if you have Tyrantrum out and your Scolipede got fucked.
Scolipede Jolly ATT 252, SPD 252, HP 4
Protect
Swords dance
Baton pass
Megahorn
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