How can you create a combo with Anzrag, the Quake-Mole, Arachnogenesis?
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[START OF COMBO]This combo can be formed with Anzrag, the Quake-Mole, Arachnogenesis

Color identity: RG
Mana cost: {5}{R}{R}{G}{G}{G}
Steps:
  1. Activate Anzrag by paying {3}{R}{R}{G}{G}, causing opponents to block Anzrag if able this turn.
  2. Cast Arachnogenesis by paying {2}{G}, preventing all damage being done this turn by non-Spider creatures.
  3. Declare Anzrag as an attacker, attacking an opponent who controls a creature but does not control a Spider.
  4. The opponent is forced to block Anzrag, triggering Anzrag, untapping all creatures you control and causing you to get an additional combat phase after this one.
  5. Any combat damage that would be dealt is prevented due to Arachnogenesis
  6. Repeat from step 3 each combat phase.[END OF COMBO STEPS]

Result:
  - Infinite combat phases
  - Infinite untap of creatures you control
  - Infinite mana creatures you control can produce[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Anzrag, the Quake-Mole must be on the battlefield
  - Arachnogenesis must be in your hand
  - Anzrag does not have summoning sickness.
  - An opponent controls an untapped creature and does not control a Spider.
[END OF COMBO PREREQUISITES]
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