booster box pokemon base set 1st Edition Shadowless with a focus on Pokémon from the Paldea region such as the starters Sprigatito Scarlet & Violet Booster Box

Lions Eye Diamond + Echo of Eons is another nice combo you can look for

It may seem counterproductive to burn your life away, but at the end of your turn, Lucemon will be able to clear your opponents board by burning them even more

Ive written a lot about Commander and Magic in general so if you want to explore further, the Star City Games article archives have my articles all the way back to January 2000

In terms of individual cards, Beseech the Mirror and Agatha's Soul Cauldron are both very powerful with potential multi-format implications

Return that card to the battlefield if its mana value is less than or equal to the number of basic land types among lands you control

May I suggest Goblin Cannon, Rocket Launcher, Fleetwheel Cruiser, Goblin Charbelcher, Jade Statue, Phyrexian Processor, Time Bomb, Wand of the Elements, or Whirling Catapult instead