The key, as always, is to be thoughtful and consider your options ahead of time
If Chulane, Teller of Tales or some other crazy value engine commander is running wild, this might be the perfect way to deal with it and slow your opponent down a bit
Elsewhere, an A or 5.0 refers to unbeatable (often mythic rare) bombs
Exodus Survival of the Fittest (LP - English) Survival of the Fittest (GD, EX - German) Survival of the Fittest (LP - French) City of Traitors (NM - English) City of Traitors (PO - French) Mirage Lion's Eye Diamond (GD, EX, NM - English) Lion's Eye Diamond (GD, EX - French) Stronghold Sliver Queen (GD, EX, NM - English) Sliver Queen (NM - German) Mox Diamond (GD, EX, NM - English) Mox Diamond (GD, EX, NM - French) Mox Diamond (EX, NM - German) Tempest Urza's Legacy Grim Monolith (GD - English) Urza's Saga Gilded Drake (PO - English) Gilded Drake (GD - French) Gaea's Cradle (PL, GD, NM - English) Gaea's Cradle (PL - German) Yawgmoth's Will (EX - German) Over 140 Duals The Spiel'23 was full of people who wanted to get rid of their Dual Lands
The one that takes the cake takoyaki however is the new MH3 Emrakul, the World Anew