Is it possible for a Warlock to lose the support of a Patron? Switch patrons?

Most wall spells describe that you can shape it anyway you want. Wall of fire just states the wall or ring shape. Can you shape the wall like an L for instance?

Wild Magic Barbarian: Wanted to make sure their ability actually uses a d3 or is that a typo?

Does a College of Creations bard have the ability to create spell components or gunpowder with their Performance of Creation ability?

If a Peace Cleric uses Protective Bond, and the raging barbarian uses its reaction to take the piercing damage in place of his ally, does he take full damage?

Is the Magic Tattoo Coverage table from Tasha’s intended to limit how many tattoos you can have at one time?

Is it true there is no longer a “Hold” action in 5e?