Notes & Combos
I used this deck from DLv 17 to DLv 20. You can swap out Ice Dragon Prison and/or Evenly Match for the EEV, Skill Drain and Gozen Match. It really depends on your play style. I ran 2 Daruma Karma cannon; but during the climb, I swapped one karma cannon out for Overroot. If you don't have overroot, just swap out for other option in side deck.
Extra Deck - Main cards I kept at 3 copies were N'Tss, Muckraker and Chaos Angel. If you don't have 3 copies of those cards, try to fill it out with whatever you got. Some options are listed in the side deck.
The Kashtira Riseheart is in there just to fight against Kashtira decks. If the opponent uses Kashtira Shangri-Ira during standby phase, you can special summon fenrir (don't use effect) and special summon Kashtira Riseheart attack into Shangri-Ira and summon Zeus and wipe board. But this strategy doesn't always appear, so if you don't have the UR cards for these cards, then you can fill Riseheart and Zeus for other extra deck cards.