Blaze powder is an item made from the blaze rod. The blaze powder is an ingredient involved in potion making using the brewing stand.
When combined with a water bottle, the blaze powder will make a mundane potion.
When combined with an awkward potion, it will make a potion of strength.
Eye of Enders are items used to help the player get into the End World via an End Portal.
Fire Charges can be used as a replacement for flint and steel. They also turn into fireballs when used as dispenser ammo.