roaring moon pokemon card worth (Paradox Drive #109/109, Crown) this attack does 120 more damage. Roaring Moon ex (Special Rare)

I'll only discuss cards that inherently have flash, ignoring those that grant the keyword to other cards

This triggered ability stacks on top of lifelink, and to round off this wonderful interaction is the nice power-toughness ratio adding up to 10 on a 5-mana value commander

3 Marowak Ex Is A Durable Force Increasing Energy Costs Could Make Bonemerang Fairer Marowak ex is a stage one, Fighting-type card with a simple setup

Mouth of Ronom and Ice-Fang Coatl become repeatable removal, Phyrexian Soulgorger can be brought back once you've enough fodder to feed it, and if you're really up for the challenge, you can go all-in on the Mill route with Iceburg Cancrix and a series of follow-up Snow plays from the graveyard