The archetype that will likely benefit the most from Sandwurm Convergence is the Tokens deck, such as Rhys the Redeemed, as 5/5 tokens are great candidates to be doubled with cards like Anointed Procession and proliferate cards like Rootborn Defenses
Starting with a mechanic idea, it felt straightforward to create some cards with the mechanic and/or that supported the mechanic, then add some generic cards like removal spells and simple creatures
Maleficent, Monstrous Dragon secures her dominance on the board by banishing a character of your choice when she comes into play, making her a deadly finisher for any Ruby-based deck
Eventually the bubble will burst, and the game will suffer because of it
Most recently, she's been reaching out to some of the most powerful Reckoner bosses in Towashithough to what end, she keeps carefully to herself