Marchesa, the Black Rose + Time Sieve + Myr Battlesphere

Prerequisites

• You do not have the highest life total, or are tied for the highest life total.
• Myr Battlesphere does not have summoning sickness.
• You control at least four other artifacts.

Steps

1. 1Declare Myr Battlesphere as an attacker, attacking the opponent with the most life or tied for the most life.
2. 2Myr Battlesphere's dethrone ability triggers, putting a +1/+1 counter on it.
3. 3Activate Time Sieve by tapping it, sacrificing Myr Battlesphere and four other artifacts you control.
4. 4When Myr Battlesphere dies, Marchesa's second ability triggers, causing you to return Myr Battlesphere from your graveyard to the battlefield at the beginning of your end step.
5. 5Resolve the Time Sieve ability, causing you to take an extra turn after this one.
6. 6At the beginning of your end step, Marchesa triggers, causing you to return Myr Battlesphere from your graveyard to the battlefield.
7. 7When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr artifact creature tokens.
8. 8Repeat each turn.

Effects

• Infinite turns
• Lock