Azamina Aphes X TRAP (This card is always treated as a "White Forest" card.) Target cards on the field, up to the number of Fusion and Synchro Monsters in your field and GY that are Fiend, Illusion, or Spellcaster
Once you get to 6+ mana it opens up some pretty sweet combos
Commander deck-building rules Commander is different amongst Magic formats, as it only allows for one card of each type, except for basic lands
Ice Dragon Prison is one of the best interrupting cards in the Yu-Gi-Oh Duel Links game
If the worst case scenarios Inundate presents are holding you back from trying it out in Commander, Id recommend adding cards in your deck that can use Inundate outside of its board wiping prowess
Victory is yours, assuming you're willing to drown yourself in Rats to get there