Combos with Omni-Changeling

1. Cast Omni-Changeling by paying its mana cost. Choose to have it enter as a copy of Princess Yue.
2. Put Omni-Changeling into your graveyard due to the legend rule.
3. When Omni-Changeling dies, it triggers, returning it from your graveyard to the battlefield as a land named Moon. Choose to have it enter as a copy of Wormfang Newt, gaining its abilities.
4. When Omni-Changeling enters, its first ability triggers, exiling it.
5. When Omni-Changeling leaves the battlefield, its second ability triggers, returning Omni-Changeling from exile to the battlefield. Choose to have it enter as a copy of Princess Yue.
6. Repeat from step 2.

1. Cast Omni-Changeling by paying its mana cost. Choose to have it enter as a copy of Princess Yue.
2. Put Omni-Changeling into your graveyard due to the legend rule.
3. When Omni-Changeling dies, it triggers, returning it from your graveyard to the battlefield as a land named Moon. Choose to have it enter as a copy of Wormfang Turtle, gaining its abilities.
4. When Omni-Changeling enters, its first ability triggers, exiling it.
5. When Omni-Changeling leaves the battlefield, its second ability triggers, returning Omni-Changeling from exile to the battlefield. Choose to have it enter as a copy of Princess Yue.
6. Repeat from step 2.

1. Cast Omni-Changeling by paying its mana cost. Choose to have it enter as a copy of Princess Yue.
2. Put Omni-Changeling into your graveyard due to the legend rule.
3. When Omni-Changeling dies, it triggers, returning it from your graveyard to the battlefield as a land named Moon. Choose to have it enter as a copy of Astral Dragon, gaining its abilities.
4. When Omni-Changeling enters, it triggers, creating two token copies of itself, thus creating two copies of Moon with Astral Dragon's abilities, that are 3/3 Dragon creatures in addition to its other types.
5. Put all but one of the [[clones]] into your graveyard due to the legend rule.
6. The Omni-Changeling tokens each trigger. Resolve a trigger, creating two token copies of itself, thus creating two copies of Moon with Astral Dragon's abilities, that are 3/3 Dragon creatures in addition to its other types.
7. Repeat from step 5.

1. Activate Kiora's Follower by tapping it, targeting Omni-Changeling.
2. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
3. Resolve the Kiora's Follower ability, untapping Omni-Changeling.
4. Activate Omni-Changeling by tapping it, targeting Kiora's Follower.
5. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
6. Resolve the Omni-Changeling ability, untapping Kiora's Follower.
7. Repeat.

1. Cast Omni-Changeling by paying its mana cost, choosing to have it enter the battlefield as a copy of Felidar Guardian
2. When Omni-Changeling enters the battlefield, it triggers, blinking Felidar Guardian.
3. When Felidar Guardian enters the battlefield, it triggers, blinking Omni-Changeling. Choose to have Omni-Changeling enter the battlefield as a copy of Felidar Guardian.
4. Repeat from step 2.

1. Activate Forensic Researcher by tapping it, targeting Omni-Changeling.
2. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
3. Resolve the Forensic Researcher ability, untapping Omni-Changeling.
4. Activate Omni-Changeling by tapping it, targeting Forensic Researcher.
5. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
6. Resolve the Omni-Changeling ability, untapping Forensic Researcher.
7. Repeat.

1. Activate Kiki-Jiki by tapping it, creating a token copy of Omni-Changeling that has haste. Choose to have Omni-Changeling enter as a copy of Kiki-Jiki.
2. Put the oldest Kiki-Jiki into the graveyard due to the legend rule.
3. Repeat step 1 using the Omni-Changeling token instead.

1. Cast Omni-Changeling by paying its mana cost, choosing to have it enter the battlefield as a copy of Bladewing.
2. Put Bladewing into your graveyard due to the legend rule.
3. Omni-Changeling's enter-the-battlefield ability triggers, returning Bladewing from your graveyard to the battlefield.
4. Put Bladewing into your graveyard due to the legend rule.
5. Bladewing's enter-the-battlefield ability triggers, returning it from your graveyard to the battlefield.
6. Repeat from step 4.

1. Activate Kiora's Follower by tapping it.
2. When Kiora's Follower becomes tapped, Judge of Currents triggers, causing you to gain 1 life.
3. Resolve Kiora's Follower's ability from step 1, untapping Omni-Changeling.
4. Activate Omni-Changeling by tapping it.
5. When Omni-Changeling becomes tapped, Judge of Currents triggers, causing you to gain 1 life.
6. Resolve Omni-Changeling's ability from step 4, untapping Kiora's Follower.
7. Repeat.

Activate Omni-Changeling by paying {1}{U}, shuffling Omni-Changeling into your library and milling your entire library due to it not having a card named Mirror-Mad Phantasm in it.

1. Cast Omni-Changeling by paying its mana cost, choosing to have it enter the battlefield as a copy of Wispweaver Angel
2. When Omni-Changeling enters the battlefield, it triggers, blinking Wispweaver Angel.
3. When Wispweaver Angel enters the battlefield, it triggers, blinking Omni-Changeling. Choose to have Omni-Changeling enter the battlefield as a copy of Wispweaver Angel.
4. Repeat from step 2.

1. Cast Omni-Changeling by paying its mana cost, choosing to have it enter the battlefield as a copy of Abdel Adrian.
2. Put the original Abdel Adrian into your graveyard due to the legend rule, causing Karmic Guide to return to the battlefield from exile.
3. Karmic Guide and Omni-Changeling's abilities trigger.
4. Resolve the Omni-Changeling ability, choosing to exile Karmic Guide until Omni-Changeling leaves the battlefield and creating a 1/1 Soldier creature token.
5. Resolve the Karmic Guide trigger, returning Abdel Adrian from your graveyard to the battlefield.
6. Put Omni-Changeling into your graveyard due to the legend rule, causing Karmic Guide to return to the battlefield from exile.
7. Karmic Guide and Abdel Adrian's abilities trigger.
8. Resolve the Abdel Adrian ability, exiling Karmic Guide until Abdel Adrian leaves the battlefield and creating a 1/1 Soldier creature token.
9. Resolve the Karmic Guide trigger, returning Omni-Changeling from your graveyard to the battlefield as a copy of Abdel Adrian.
10. Repeat from step 2.

1. Activate Kiora's Follower by tapping it, targeting Omni-Changeling.
2. Illusionist's Bracers triggers, copying Kiora's Follower's ability.
3. Resolve both Kiora's Follower abilities, untapping Omni-Changeling and another permanent you control.
4. Activate Omni-Changeling by tapping it, untapping Kiora's Follower.
5. Repeat.

1. Cast Omni-Changeling by paying its mana cost. Choose to have it enter as a copy of Anticausal Vestige.
2. When Omni-Changeling enters, Cloudstone Curio triggers, returning Anticausal Vestige from the battlefield to your hand.
3. When Anticausal Vestige leaves the battlefield, it triggers, causing you to draw a card and and put Anticausal Vestige from your hand onto the battlefield.
4. When Anticausal Vestige enters, Cloudstone Curio triggers, returning Omni-Changeling from the battlefield to your hand.
5. When Omni-Changeling leaves the battlefield, it triggers, causing you to draw a card and put Omni-Changeling from your hand onto the battlefield as a copy of Anticausal Vestige.
6. Repeat from step 2.

1. Activate Grim Poppet by removing a -1/-1 counter from it, putting a -1/-1 counter on Omni-Changeling.
2. Nest of Scarabs triggers, creating a creature token.
3. Activate Omni-Changeling by removing a -1/-1 counter from it, putting a -1/-1 counter on Grim Poppet.
4. Nest of Scarabs triggers, creating a creature token.
5. Repeat.