Return of the Cubic Lords

Cubics are very powerful because they have the ability to negate your opponent's monster effects and blocking them from attacking by placing Cubic Counters on them. Use Vijam the Cubic Seed to do this easily. However, if you only have one Vijam on the field, wait until your opponent attacks with their last monster to use Vijam's effect, or else you will be wide open to a direct attack. Use cards like Gold Sarcophagus and Cubic Karma to search for Vijam, or Cubic Ascension to Summon it straight from your Deck. And if you are left open to a direct attack, Cubic Rebirth can place a Cubic Counter on the attacking monster. You can also use Duza the Meteor Cubic Vessel to send any Cubic card from your Deck to your Graveyard to either use its Banishing effect if it's a Spell/Trap card, or summon it using something like Monster Reborn if it's a monster. Cubic Dharma can help you further to place Cubic Counters on your opponent's monsters by making it so that you take no battle damage from battles involving a Cubic monster, meaning you can attack with Vijam, place a Cubic Counter, and then go to the Main Phase 2 and put Vijam back in a Monster Zone. Use Polymerization or Unification of the Cubic Lords to Fusion Summon Crimson Nova Trinity the Dark Cubic Lord, or you can get out your Crimson Nova the Dark Cubic Lords to get out Number XX: Utopic Dark  Infinity.