Tainted Observer 
| Deck name | Creator | Source |
|---|---|---|
| (2024) Tainted Observer - Combo | Dukeslayer | Moxfield |
| Pauper Tainted Observer | Didouck | Archidekt |
| poison aggro | barre | Moxfield |
| poison MK III | Tabby | Moxfield |
| Observe My Taint | nethageraba | Moxfield |
| PDH Tainted Observer | AlteredEgo97 | Archidekt |
| Tainted Observer - PDH | pcccp | Moxfield |
| .:[cPDH]:. Ŧainted Øbserver | booyakadude | Moxfield |
| tainted ob | andrade | Moxfield |
| [PDH] Tainted Observer - +1/+1 Counter Army | doebotic | Moxfield |
| PEDH Simic Infect | Hcblaze | Moxfield |
| The Taint Saint | ukigumo | Moxfield |
| Tainted Observer: Pauper Proliferate | SDR | Moxfield |
| Tainted Love | retrohemmo | Moxfield |
| Pauper Poison | Conhair | Moxfield |
| Pauper Commander | smurfburn | Moxfield |
| Pauper Deck | VenomusFang | Moxfield |
| Tainted Observer PDH | Hexadecimal | Archidekt |
| cPDH Plauge Observation | Trillocybin | Moxfield |
| Simic PDH - Observer? | coomsumer | Moxfield |