BUDGET TEMPO MAGE (no adventures, 860 dust)

hey, i recently started playing on a new account, so i decided to build towards a tempo mage- The aim of the deck is to establish early-game board control with mana wyrm, cult sorcerer, sorcerer’s apprentice, arcane missiles, frostbolt and acidic swamp ooze. You also have powerful midgame with water elemental, spellslinger, azure drake, servant of yogg-saron and faceless summoner. You should finish your opponent with powerful lategame with firelands portal and north sea kraken or burst via fireball. The deck also has plenty of card draw with acolyte of pain, arcane intellect, azure drake and sometimes even through servant. The only cards not yet mentioned are flamestrike and mirror image. Mirror images are there to protect your early game vs their early game, thus gaining a better position. Flamestrike usually serves as a comeback card if you fall too far behind on board.