Helga, Skittish Seer, Mind Over Matter, and Hoverguard Sweepers

Prerequisites

• Helga, Skittish Seer on the battlefield
• Mind Over Matter on the battlefield
• Hoverguard Sweepers in hand
• Helga does not have summoning sickness and has power 8 or greater

Steps

1. Activate Helga by tapping it, adding at least eight that can only be spent to cast creature spells with mana value 4 or greater or creature spells with in their mana cost
2. Cast Hoverguard Sweepers by paying
3. Helga triggers, causing you to draw a card, gain 1 life and put a +1/+1 counter on Helga
4. When Hoverguard Sweepers enters the battlefield, it triggers, returning itself from the battlefield to your hand
5. Activate Mind Over Matter by discarding a card, untapping Helga
6. Repeat

Results

• Near-infinite mana permanents you control can produce
• Infinite self-discard triggers
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Near-infinite ETB
• Infinite draw triggers
• Infinite looting
• Near-infinite storm count
• Near-infinite LTB
• Near-infinite untap of permanents you control
• Near-infinite +1/+1 counters on Helga
• Near-infinite colored mana that can only be spent to cast creature spells with mana value 4 or greater or creature spells with X in their mana cost
• Return a portion of target creatures to their owner's hand