Najeela, the Blade-Blossom, Jegantha, the Wellspring, and Slayers' Stronghold

Prerequisites

• Najeela, the Blade-Blossom on the battlefield
• Jegantha, the Wellspring on the battlefield
• Slayers' Stronghold on the battlefield
• Najeela does not have summoning sickness
• Opponents can not block and kill creatures you control
• available

Steps

1. Activate Slayers' Stronghold's second ability by paying and tapping it, giving Jegantha +2/+0, vigilance, and haste until end of turn
2. Move to your combat phase, and declare Najeela and Jegantha as attackers
3. Najeela triggers, creating a 1/1 Warrior creature token that is tapped and attacking
4. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs
5. Activate Najeela by paying , untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one
6. Repeat from step 2 each combat phase

Results

• Infinite combat phases
• Infinite creature tokens
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers