Put a Giant Cape or Rocky Helmet on your Dialga ex and use Metallic Turbo to ramp either your Arceus ex, Mew ex, or another Dialga ex
I don't want to ruin anyone's fun, but I feel obliged to point out one thing
Red may not have as many card draw options as other colors, but there are still ways to draw your best cards in mono red decks
The ability to consume creatures in the graveyard in order to grow might tempt you to bump a ton of creatures into your graveyard to make a big, bad blob, but the Mimeoplasm gets even better: For two generic mana you can turn Mimeoplasm, Revered One into any creature it exiled with its first ability
GR Gold Rare Dimension Mirage X TRAP Continuous Activate this card by targeting 1 face-up Attack Position monster your opponent controls
Numeron Creation X SPELL (This card is always treated as a "Galaxy-Eyes" card.) If 3 or more LIGHT Dragon monsters with 3000 or more original ATK are on the field: Special Summon 1 "Number" Dragon Xyz Monster from your Extra Deck, then attach this card on the field to it as material