Roalesk, Apex Hybrid, Blade of Shared Souls, Herd Baloth, and Druids' Repository

Prerequisites

• Roalesk, Apex Hybrid on the battlefield
• Blade of Shared Souls on the battlefield
• Herd Baloth on the battlefield
• Druids' Repository on the battlefield
• You control at least one additional creature
• Druids' Repository has at least one charge counter on it
• available

Steps

1. Activate Blade of Shared Souls' equip ability by paying , attaching it to another creature you control
2. Blade of Shared Souls triggers, causing the creature it is attached to to become a copy of Roalesk
3. Put the creature with Blade of Shared Souls attached into your graveyard due to the legend rule
4. The creature triggers, putting two +1/+1 counters on Herd Baloth and two charge counters on Druids' Repository
5. Herd Baloth triggers twice, creating two 4/4 Beast creature tokens
6. Activate Druids' Repository twice by removing two charge counters from it, adding
7. Repeat

Results

• Infinite +1/+1 counters on Herd Baloth
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite proliferate
• Infinite sacrifice triggers