Budget Blue Infinity

okay, im new to magic, so im not sure how things like the stack will affect this combo, but heres what i came up with. combo: echo mage + cunning sparkmage + reality spasm... use the counterspells to stall until you have 6 sources of mana, a levelled-up echo mage, and a cunning sparkmage out. tap the cunning sparkmage to deal 1 damage to opponent. then tap all lands to play reality spasm, untapping 3 islands and the cunning sparkmage in the process. tap two islands and the echo mage to copy reality spasm at least once, then tap the cunning sparkmage to deal 1 damage to opponent again. afterwards, the copied reality spasm resolves, allowing you to untap 2 islands, the cunning sparkmage, and the echo mage. tap 2 islands and the echo mage to copy the copied reality spasm, then tap cunning sparkmage again to deal 1 more point of damage. repeat an infinite amount of times for infinite damage. comments welcome.