If this card is Normal or Special Summoned: You can send 1 "Cubic" card from your Deck to the Graveyard. Once per turn, during either player's turn, if a monster was sent to your Graveyard this turn while you controlled this face-up card: You can make this card gain 200 ATK for each monster with a different name in your Graveyard, until the end of this turn.
Cubic Mandala can disrupt your opponent’s play by clogging their field with weak monsters that cannot use their effects. You can only use Cubic Mandala while you control a Cubic monster. Another problem is this gives your opponent free monsters to use as Tribute or Synchro material.
Send monsters to grave
Use these cards to send monsters to the graveyard. Some of them can be activated while your opponent is attacking Dura for a surprise attack boost.