Arctic Burn gives bonus range and percent based burn damage, so poke high HP targets from distance in lane.

Winter's Curse forces enemies to attack a cursed target, so cast it on a high damage carry to delete their ally.

Cold Embrace makes an ally immune to physical damage and heals them, so save your carry from physical burst.

Splinter Blast damages and slows enemies around the target, so use it to harass and zone in lane.

Arctic Burn's percentage burn is strongest on high HP heroes, so focus tanks and cores with it.

Winter Wyvern is squishy with no escape, so stay behind the frontline and use Arctic Burn range.