That Deck with Horn of Heaven in it (Mecha Phantom Beast)

3 Mecha Phantom Beast Megaraptor
3 Mecha Phantom Beast Olion
3 Mecha Phantom Beast Tetherwolf
2 Mecha Phantom Beast Harrliard
2 Mecha Phantom Beast Coltwing
2 Mecha Phantom Beast Blue Impala
2 Mecha Phantom Beast Hamstrat
1 Mecha Phantom Beast Blackfalcon
18

3 Mystical Space Typhoon
2 Soul Charge
2 Pot of Duality
1 Book of Moon
1 Forbidden Lance
1 Foolish Burial
10

3 Aerial Recharge
2 Dimensional Prison
2 Horn of Heaven
2 Breakthrough Skill
1 Compulsory Evacuation Device
1 Solemn Warning
1 Bottomless Trap Hole
12

EXTRA

Lightning Chidori
Number 101: Silent Honors ARK
Gear Gigant X
2 Mecha Phantom Beast Dracossack
Number 42: Galaxy Tomahawk
Number 11: Big Eye
Phantom Fortress Enterblathnir
Superdreadnought Rail Cannon Gustav Max
Ally of Justice Catastor
Powered Inzektron
Ally of Justice Decisive Armor
Mecha Phantom Beast Concoruda
Mecha Phantom Beast Jaculuslan

(Only 14 in Extra, had difficulty filling it out)

Monster Choices. 

Megaraptor, Olion and Tetherwolf are the "best" (meaning, you rather see them as opposed to the others) of the archetype.

Raptor searches, Olion makes Foolish Burial a staple, and Tetherwolf is the EASIEST Mecha Phantom Beast token generator.

(I think) Harrliard sucks. Trying 2 was a safe number, but you rarely want to see it. Seems better as a one of that's searchable. That "combo" with Coltwing doesn't make it any more desirable.

Coltwing is easier to trigger than Harrliard and has a much practical effect, but it's 1600.

Blue Impala is my favorite tuner (even though it limits you to Machine synchros) because you don't need to use on field monsters.

Hamstrat is SLOW, but it CAN revive something.

Blackfalcon MUST attack, which causes you unnecessary damage, but the effect is sometimes useful.

Questions you MAY ask:

Q. Why all the Machine-type Synchros?

A. Blue Impala

Q. WTF? Horn of Heaven. Are you serious?

A. Somewhat. You SHOULD have enough tokens you don't mind throwing away.

Note: trying two was ambitious, but it was worth a try. 

Changes I'll (more than likely) make: 

-1 Aerial Recharge: does nothing beyond the first. With Olion, you don't have as much as an issue with generating tokens

-1 Mecha Phantom Beast Harrliard: because it SUCKS.

- Forbidden Lance: very underwhelming. If they banish your MPB, f*ck it.

-1 Horn of Heaven: 2 is too cute...

+1 Limiter Removal: because MACHINES

+2 Waboku: "combos" with hamstrat. Keeps tokens alive.

+ 3rd Duality, Dropped a monster. Added more traps. Seems legit.

List with "suggested" changes

3 Mecha Phantom Beast Megaraptor
3 Mecha Phantom Beast Olion
3 Mecha Phantom Beast Tetherwolf
2 Mecha Phantom Beast Coltwing
2 Mecha Phantom Beast Blue Impala
2 Mecha Phantom Beast Hamstrat
1 Mecha Phantom Beast Harrliard
1 Mecha Phantom Beast Blackfalcon
17

3 Mystical Space Typhoon
3 Pot of Duality
2 Soul Charge
1 Book of Moon
1 Limiter Removal
1 Foolish Burial
11

2 Aerial Recharge
2 Dimensional Prison
2 Breakthrough Skill
2 Waboku
1 Horn of Heaven
1 Compulsory Evacuation Device
1 Solemn Warning
1 Bottomless Trap Hole
12