Grand Architect + Training Grounds Combos

6 known combos featuring both cards in Commander

Infinite colorless mana that can only be spent to activate abilities of artifacts Infinite colorless mana that can only be spent to cast artifact spells Cast any number of spells from opponents' libraries Exile each opponent's library Infinite colored mana

Combo 1 with Urza, Prince of Kroog + Encroaching Mycosynth

Results: Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells · Infinite copies of nonland permanents you control · Infinite creature tokens · Infinite ETB
Steps
  1. Activate Urza by paying {4}, creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
  2. Activate Grand Architect's second ability by tapping the Training Grounds token, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  3. Activate Urza by paying at most {2}, creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
  4. Activate Grand Architect's second ability by tapping the Training Grounds token, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  5. Repeat from step 3.
  6. Once you have infinite colorless mana, you may target any other nonland permanent using Urza's ability.

Combo 2 with Urza, Prince of Kroog + Mycosynth Lattice

Results: Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells · Infinite copies of permanents you control · Infinite creature tokens · Infinite ETB · Infinite landfall triggers
Show steps
  1. Activate Urza by paying {4}, creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
  2. Activate Grand Architect's second ability by tapping the Training Grounds token, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  3. Activate Urza by paying at most {2}, creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
  4. Activate Grand Architect's second ability by tapping the Training Grounds token, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  5. Repeat from step 3.
  6. Once you have infinite colorless mana, you may target any other permanent using Urza's ability.

Combo 3 with Knacksaw Clique + Prismite

Results: Cast any number of spells from opponents' libraries · Exile each opponent's library · Infinite colored mana · Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells
Show steps
  1. Activate Grand Architect's second ability by tapping Knacksaw Clique, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  2. Activate Prismite by paying {1}, adding {U}.
  3. Activate Knacksaw Clique by paying {U} and untapping it, exiling the top card of an opponents library and allowing you to cast it this turn.
  4. Repeat.

Combo 4 with Knacksaw Clique + Stonework Packbeast

Results: Cast any number of spells from opponents' libraries · Exile each opponent's library · Infinite colored mana · Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells
Show steps
  1. Activate Grand Architect's second ability by tapping Knacksaw Clique, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  2. Activate Stonework Packbeast by paying {1}, adding {U}.
  3. Activate Knacksaw Clique by paying {U} and untapping it, exiling the top card of an opponents library and allowing you to cast it this turn.
  4. Repeat.

Combo 5 with Knacksaw Clique + Signpost Scarecrow

Results: Cast any number of spells from opponents' libraries · Exile each opponent's library · Infinite colored mana · Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells
Show steps
  1. Activate Grand Architect's second ability by tapping Knacksaw Clique, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  2. Activate Signpost Scarecrow by paying {1}, adding {U}.
  3. Activate Knacksaw Clique by paying {U} and untapping it, exiling the top card of an opponents library and allowing you to cast it this turn.
  4. Repeat.

Combo 6 with Knacksaw Clique + Crossroads Candleguide

Results: Cast any number of spells from opponents' libraries · Exile each opponent's library · Infinite colored mana · Infinite colorless mana that can only be spent to activate abilities of artifacts · Infinite colorless mana that can only be spent to cast artifact spells
Show steps
  1. Activate Grand Architect's second ability by tapping Knacksaw Clique, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  2. Activate Crossroads Candleguide by paying {1}, adding {U}.
  3. Activate Knacksaw Clique by paying {U} and untapping it, exiling the top card of an opponents library and allowing you to cast it this turn.
  4. Repeat.
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