The other possibility is playing Invasion of Regatha in a dedicated burn deck since the backside seems pretty powerful with Play with Fire, Lightning Strike, and friends as a weird twist on Torbran, Thane of Red Fell, although I'm not sure a burn deck wants to use multiple burn spells or attacks to remove the five defense counters to defeat the battle
Either way, this has been massively helpful
FAQ What Types Of Cards Should Be In The Pokmon Cube
However, while Karn is as potent a threat as ever in Modern Tron, Tron simply hasnt kept up with Moderns development and is no longer the Tier 1, format-defining archetype it once was
Some Immersive Cards may also be given out as promos during certain events, as achievements for completing milestones, or become available for purchase in the shop during special occasions