Spinerock Tyrant, and Saw in Half

Prerequisites

• Spinerock Tyrant on the battlefield
• Saw in Half in hand
• available

Steps

1. Cast Saw in Half by paying its mana cost targeting the creature that can recur spells
2. When you cast that spell, Spinerock Tyrant triggers, copying Saw in Half and choosing Spinerock Tyrant as its target
3. Resolve the copy of Saw in Half, creating two Spinerock Tyrant tokens, except their power and toughness are halved to a minimum of 1
4. Resolve the original Saw in Half, creating two token copies of the spell recursion creature, except their power and toughness are halved to a minimum of 1
5. When those tokens enter, they trigger, returning Saw in Half and another target card of the appropriate type from your graveyard to your hand
6. Cast Saw in Half by paying its mana cost targeting the creature that can recur spells
7. When you cast that spell, each copy of Spinerock Tyrant triggers, copying Saw in Half once for each Spinerock Tyrant and choosing a different copy of Spinerock Tyrant as each additional spell's target Resolve the copies of Saw in Half, creating four Spinerock Tyrant tokens, except their power and toughness are halved to a minimum of 1
8. Resolve the original Saw in Half, creating two token copies of the spell recursion creature, except their power and toughness are halved to a minimum of 1
9. When those tokens enter, they trigger, returning Saw in Half and another target card of the appropriate type from your graveyard to your hand
10. Cast the spell that creates a Treasure token by paying its mana cost, targeting any creature
11. Each copy of Spinerock Tyrant triggers, copying that spell once for each Spinerock Tyrant you control
12. Resolve all copies of that spell, creating at least one Treasure token each time
13. Activate those Treasure tokens by tapping and sacrificing them, adding one mana per Treasure
14. Cast Saw in Half by paying its mana cost targeting the spell recursion creature
15. When you cast that spell, each copy of Spinerock Tyrant triggers, copying Saw in Half once for each Spinerock Tyrant and choosing a different copy of Spinerock Tyrant as each additional spell's target
16. Resolve all copies of that spell, creating two copies of the spell recursion creature and additional copies of Spinerock Tyrant
17. When the first spell recursion creature token enters, it triggers, returning the spell that creates Treasure from your graveyard to your hand
18. When the second spell recursion creature token enters, it triggers, returning Saw in Half from your graveyard to your hand
19. Repeat from step 11

Results

• Infinite ETB
• Infinite Treasure tokens
• Infinite colored mana
• Infinite copies of creatures you control
• Infinite magecraft triggers
• Infinite storm count