Helix Models
This is the most comprehensive list of models and blocks that you can find for every amp, cab, distortion, modulation, pitch, and other effects found on the Line 6 Helix, Helix Rack, Helix LT, HX Stomp, HX Stomp XL, HX Effects, and Helix Native.
Distortion: Legacy
Found 17 legacy models.

Tube Drive
Based on: Chandler Tube Driver®

Screamer
Based on: Ibanez® Tube Screamer®
Overdrive
Based on: DOD® Overdrive/Preamp 250
Classic Dist
Based on: ProCo Rat
Heavy Dist
Based on: Boss® Metal Zone
Colordrive
Based on: Colorsound® Overdriver
Buzz Saw
Based on: Maestro® Fuzz Tone
Facial Fuzz
Based on: Arbiter Fuzz Face
Jumbo Fuzz
Based on: Vox® Tone Bender
Fuzz Pi
Based on: Electro- Harmonix® Big Muff Pi®
Jet Fuzz
Based on: Roland® Jet Phaser
L6 Drive
Based on: Line 6 Original
L6 Distortion
Based on: Line 6 Original
Sub Oct Fuzz
Based on: Line 6 Original
Octave Fuzz
Based on: Tycobrahe® Octavia
Killer Z
Based on: BOSS® Metal Zone MT-2
Firmware version: 3.15
Buy now at: Buy BOSS® Metal Zone MT-2 at Amazon