Here is a lazy macro I did for another friend. Starts with shield yourself and spams Frostbolt, hold a modifier for Frostfire and pops all cooldowns.
Macro might be outdated, please check the forums for up to date macros.
/castsequence [fusion_builder_container hundred_percent="yes" overflow="visible"][fusion_builder_row][fusion_builder_column type="1_1" background_position="left top" background_color="" border_size="" border_color="" border_style="solid" spacing="yes" background_image="" background_repeat="no-repeat" padding="" margin_top="0px" margin_bottom="0px" class="" id="" animation_type="" animation_speed="0.3" animation_direction="left" hide_on_mobile="no" center_content="no" min_height="none"][mod]Frostfire Bolt;reset=30 Ice Barrier,null /castsequence Frostbolt /castsequence reset=120 Mirror Image,Deep Freeze,Deep Freeze,Deep Freeze,Deep Freeze,Deep Freeze,Deep Freeze /cast Icy Veins /cast Flame Orb /use 13 /use 14
Macro Explanation:
UPDATED July 7, 2011: Reword code for no lockups and added Frostfire Bolt with modifier. Removed Deep Freeze version since is combined now.[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]