Rootha, Mercurial Artist, Hellkite Courser, Ashnod's Altar, and Rite of Replication

Prerequisites

• Rootha, Mercurial Artist on the battlefield
• Hellkite Courser on the battlefield
• Ashnod's Altar on the battlefield
• Rite of Replication in hand
• available

Steps

1. Cast Rite of Replication by paying , targeting Hellkite Courser
2. Holding priority, activate Rootha by paying and returning it to your hand, targeting Rite of Replication
3. Choose to have Rootha returned to the command zone instead of your hand
4. Resolve the Rootha ability, copying Rite of Replication, targeting Hellkite Courser
5. Resolve the copy of Rite of Replication, creating a token copy of Hellkite Courser
6. The Hellkite Courser token enters the battlefield, putting Rootha from the command zone onto the battlefield
7. Activate Ashnod's Altar by sacrificing the Hellkite Courser token, adding
8. Repeat from step 2

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers