[Cruel Endeavor] and [Debilitating Wound]

[Mugendramon]

 

While your opponent controls a monster, this card cannot be destroyed. When a monster your opponent controls is destroyed by battle or by a monster's effect: Place 1 Victory Counter on this card (max 12). Once per turn: You can target 1 monster in your Graveyard; remove Victory Counters from this card equal to the Level/Rank of that target, then Special Summon it. If this card leaves the field, switch control of a monster Summoned by this effect to your opponent.

 

 

 

This turn, any monster that battles is destroyed at the end of the Battle Phase.