1 Tuner + 1 or more non-Tuner monsters When this card is destroyed by a card effect and sent to the Graveyard: You can target 1 Level 4 or lower monster in your Graveyard, except this card; Special Summon that target.
If you have an Underworld Fighter Balmung in your graveyard and another Underworld Fighter Balmung and Des Counter Blow on the field. You can create a loop where the Balmung on the field will be destroyed by Des Counter Blow and will then revive the other Balmung in the graveyard.
Activates from your Graveyard
Special Summons from your Graveyard
synchro summon two of these and you will always have a 2100 beater