How can you create a combo with Genestealer Patriarch, Resourceful Defense, Leech Bonder, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Genestealer Patriarch, Resourceful Defense, Leech Bonder, Ashnod's Altar

Color identity: WU
Mana cost: {U}
Steps:
  1. Declare Genestealer Patriarch and Leech Bonder as attackers.
  2. Genestealer Patriarch's first ability triggers, putting an infection counter on a creature an opponent controls.
  3. Activate Leech Bonder by paying {U} and untapping it, moving the infection counter from the opponent's creature onto another creature you control.
  4. Activate Ashnod's Altar by sacrificing the creature with an infection counter on it, adding {C}{C}.
  5. The creature dies, triggering Resourceful Defense and Genestealer Patriarch's second ability.
  6. Resolve the Resourceful Defense trigger, putting an infection counter onto another creature you control.
  7. Resolve the Genestealer Patriarch trigger, causing you to create a token copy of the sacrificed creature that is a Tyranid in addition to its other types.
  8. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Genestealer Patriarch and Leech Bonder do not have summoning sickness.
  - You control at least one additional creature.
  - An opponent controls a creature.
[END OF COMBO PREREQUISITES]
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