The Shielding is a Spell added by Roots. It is created with the base ingredient, an Orange Tulip, a Sponge and Leather. When cast and held, it will work as a Shield, blocking mobs and projectiles.
Runic Tablet entry
— Runic Tablet
The orange tulip is associated with protection and resistance. Using the above recipe, you can create a spell that will repel mobs and stop projectiles while holding-right click on the spell.