Board Thread:New on Terraria Wiki/@comment-25589080-20141029144613/@comment-24821572-20141029201119

Aaah, no leaf wings then. Demon/Angel are the only ones you can have anyway. For Twins and Skeletron Prime, make a floating arena at least 40 wide with platforms, with at least 3 levels. Place Heart Statues around the arena powered by a 1-sec timer if you have any to spare.

Don't forget all combat buff potions like Ironskin Potion, Regeneration Potion. Get several Greater Healing Potions from Lepus. Get Adamantite Repeater and stock up on either Hellfire Arrows or Holy Arrows.