I am excluding the mana-fixing artifacts (signets, keyrunes, cluestones) one for each guild. There are 23 of these.
| Name |
CMC |
Set |
Rarity |
| Codex
Shredder |
1 |
Return to Ravnica |
Uncommon |
| Glaring
Spotlight |
1 |
Gatecrash |
Rare |
| Moratorium
Stone |
1 |
Guildpact |
Rare |
| Pithing
Needle |
1 |
Return to Ravnica |
Rare |
| Terrarion |
1 |
Ravnica |
Common |
| Voyager Staff |
1 |
Ravnica |
Uncommon |
| Crown of
Convergence |
2 |
Ravnica |
Rare |
| Cyclopean
Snare |
2 |
Ravnica |
Uncommon |
| Magewright's
Stone |
2 |
Dissension |
Uncommon |
| Prophetic
Prism |
2 |
Gatecrash |
Common |
| Razortip Whip |
2 |
Gatecrash |
Common |
| Tablet of the
Guilds |
2 |
Return to Ravnica |
Uncommon |
| Bloodletter
Quill |
3 |
Ravnica |
Rare |
| Chromatic
Lantern |
3 |
Return to Ravnica |
Rare |
| Cloudstone
Curio |
3 |
Ravnica |
Rare |
| Evolution Vat |
3 |
Dissension |
Rare |
| Mizzium
Transreliquat |
3 |
Guildpact |
Rare |
| Plague Boiler |
3 |
Ravnica |
Rare |
| Spectral
Searchlight |
3 |
Ravnica |
Uncommon |
| Bottled
Cloister |
4 |
Ravnica |
Rare |
| Gruul War
Plow |
4 |
Guildpact |
Rare |
| Muse Vessel |
4 |
Dissension |
Rare |
| Skullmead
Cauldron |
4 |
Dissension |
Uncommon |
