Dark Ceruvim Irisfil

2 Level 8 monsters
Once per turn, you can Xyz Summon "Dark Ceruvim Irisfil" by using 1 Xyz Monster you control that has not activated its effect in the Monster Zone this turn (transfer its materials to this card). If this card is Xyz Summoned: You can activate this effect; this turn, Xyz Monsters you control will gain ATK equal to their own Rank x 100 during the Battle Phase only. If this card would be destroyed by battle or card effect, you can detach 1 material from your monsters instead.