Crystal Shard Combos
Archaeomancer + Crystal Shard + Capture of Jingzhou
Archaeomancer + Crystal Shard + Temporal Manipulation
Archaeomancer + Crystal Shard + Time Warp
Archaeomancer + Crystal Shard + Walk the Aeons
Cast Through Time + Venser, Shaper Savant + Crystal Shard
Inalla, Archmage Ritualist + Timestream Navigator + Crystal Shard
Medomai the Ageless + Identity Thief + Crystal Shard
Medomai the Ageless + Satoru Umezawa + Crystal Shard
Combo result
Infinite turns.
Prerequisites
Medomai the Ageless in hand. All other permanents on the battlefield. You control an additional nontoken creature that does not have summoning sickness. An opponent is unable to block creatures you control. {U}{U}{B} plus enough mana to cast the additional creature available each turn.
Mnemonic Wall + Crystal Shard + Capture of Jingzhou
Mnemonic Wall + Crystal Shard + Temporal Manipulation
Mnemonic Wall + Crystal Shard + Time Warp
Mnemonic Wall + Crystal Shard + Walk the Aeons
Timestream Navigator + Flameshadow Conjuring + Crystal Shard
Timestream Navigator + Molten Echoes + Crystal Shard
Combo result
Infinite turns.
Prerequisites
Timestream Navigator in hand. All other permanents on the battlefield. You have the city's blessing and/or control at least eight permanents. "Human", "Pirate", or "Wizard" chosen with Molten Echoes. {U}{U} available each turn, plus an additional or {U} available each turn.