Deja Blue
Three blue commons. Infinite blue mana. Six pence.
The cards
How it works
Displace reads "Exile up to two target creatures you control, then return those cards to the battlefield." Blink Peregrine Drake and Mnemonic Wall together. The Drake reads "When this creature enters, untap up to five lands" - it pays the spell back with profit. The Wall reads "When this creature enters, you may return target instant or sorcery card from your graveyard to your hand" - it hands Displace straight back. Cast it again. The same lands untap every single loop - with four lands you bank mana every cycle, forever. The rules receipt: mana pools only empty at the end of a step or phase (rule 500.4), and this whole loop happens inside one main phase. The bank is real. Comment what YOU would spend infinite blue mana on.
Prices confirmed on Cardmarket, 1 September 2026. Displace from £0.02, Peregrine Drake from £0.02, Mnemonic Wall from £0.02. Prices fluctuate.
Where to buy
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