There are 5 different decks for Ikoria Commander (2020). You will be sent one at random unless otherwise specified, subject to availability.
The decks are:
Arcane Maelstrom - Green/Blue/Red (Kalamax, the Stormsire)
Enhanced Evolution - Black/Green/Blue (Otrimi the Ever-Playful)
Ruthless Regiment - Red/White/Black (Jirina Kudro)
Symbiotic Swarm - White/Black/Green (Kathrill, Aspect Warper)
Timeless Wisdom - Blue/Red/White (Gavi Nest Warden)