Dark. Dragon/Synchro/Effect. 1 Tuner + 1+ non-Tuner monstersFace-up cards in your Spell & Trap Zone cannot be destroyed by card effects. You can only use each of the following effects of "Centur-Ion Auxila" once per turn. If this card is Special Summoned: You can add 1 "Centur-Ion" card from your Deck to your hand. During the End Phase: You can place 1 of your non-Synchro "Centur-Ion" monsters that is banished or in your GY face-up in your Spell & Trap Zone as a Continuous Trap.