Sirenmon

[Security] [End of Your Turn] You may play 1 [Ceresmon] from your hand with the cost reduced by 7. If this effect played, you may place this card as the played Digimon's bottom digivolution card. [All Turns] When any of your other [Shaman] or [Iliad] trait Digimon or Tamers would leave the battle area other than by your effects, by deleting this Digimon, they don't leave. [On Deletion] You may place this card face up as the bottom security card.

[Opponent's Turn] [Once Per Turn] When one of your opponent's Digimon attacks, you may change the attack target to 1 of your suspended Digimon.

[Digivolve] Lv.4 w/[TS] trait: Cost 3