After getting the items above, take a look at the other team. If they have any fed champs focus on armor or magic resist depending, or if they are based on AD or AP focus on that.

Start at blue buff, use smite and attack it, crack a health potion. After losing some health use consume on the golem. Kill the golem and the 2 little ones. Move to wolves. Cast blood boil on yourself and consume the large wolf, then kill the little ones. Consume the big wraith and always spam bloodboil. Kill the 2 medium golems using consume/bloodboil. Use smite on lizard then consume when low health. During this process use health pots when needed.

Nunus ult works best when hidden in a bush, this makes it so the enemies don't even know they are inside it. Having a teammate lure enemies into nunus ult is a really big, possibly game changing if it works. If u cant lure try to guess if enemies are coming and pop ur ult b4 they get to u, or if ur being chased when u go in a bush just pop ult.