Misaligned or blurred printing
Cyclonic Rift Perhaps the most famous blue MTG card for commander, and its best boardwipe
Maybe we take it a step further, into Myr Battlesphere (and other associated Myr cards) or Maelstrom Colossus, and then use Ingenuity Engine to help get back the things from the graveyard put there by Glacians ability
Only 16 out of 52 Tera Pokmon cards actually do things correctly: they have their types changed and their weaknesses switched, but normal energy costs for their attacks
Ruthless Technomancer also serves as a good inclusion in a deck looking to harness these effects, as it will actually convert your sacrificed creatures power into Treasure tokens that you can save for a later turn, or simply cash in for an instant speed reanimation effect
It's tempting, but I have a soft spot for voltron, hexproof commanders with evasion