I have a Polukranos, world eater and a Elsbeth, the sun champion for trade.
High priority:
2x Vexing Devil
2x Goblin Guide
4x Flagstone of Trokair
4x Emmeria, the Skyrune

Medium:
2x Molten Rain
2x Smash to smithereens
2x Combust
3x Lava Spike
4x Hellspark Elemental

Bump update