here are some principles for ideas instead of something direct...
- be able to demote your own leader and allow decoy/resurrect/etc type functions to apply to it
- targeted promote to gold of probable scorch target so as changes various scorch mechanics
- close off the underworld, ala, no resurrecting anything (perhaps just for that next round or whatever kind of time limit)
- some sort of spellguard mechanic that prevents the usage of magic/alchemy cards for a time
- bribe spies to double cross (ex. ambassador now boosts your ally by 10, iris effect to you as well, and other examples like that depending on the spy but too many to name)
- mercenary who fights for you, but then can be affected by said bribe play
- spy that can sabotage ships and machines however
- set a row on fire, anything played on it takes +2 damage (or whatever number) and that isn't cleared by weather (though can be nullied by torrential rain or skelliage storm))
- poisoned consumable. as in, monster consumes, but takes damage because of poison
- something like skelliage storm, but works instead as a stampede of whatever animals
- charm/mesmerize/whatever a unit on opponents side to attack an ally
- blacksmith that does an armor boost
- rusting armor for armor degradation
- whatever unit becomes a dragon rider
- reversal traps. say someone tries some scorch mechanic. this trap card will redirect it (in this case, reflective mirror maybe?) same with alzur's thunder (use a lightning rod in that case) or any other similar kind of attack card
that is all i can think of for now