Cards need to be designed based upon the list of debuffs ZBlader provided.
Which are best as creatures/permanents/spells?
Also I am curious ET, can you create more creature images like the Stratus Flyer and Dimensional Stalker? (The ambush series is mostly waiting on art to continue and a back stock of creature images wouldn't be bad.)
Paralyzed, cannot use abilities, may miss on attacks = Spell, if effect is permanent
High in the Sky, non airborne creature can't do anything and take 2 damage when effect wears off (hard landing) = creature, ability concept = big airborne creature swoops down and grabs the target creature, then drops it, damaging it on impact.
Corruption, Strength increases, but HP begins to decrease, Shame, creature loses X attack. Corruption = Spell, new form of CC aswell as support for high hp creatures, very similar to Liquid Shadow. Shame = Permanent, new shield.
Muscle Poison, Creature loses X attack for X turns = creature or permanent/shield: since effect is temporary.
Shaken, max health is decreased by X = Spell assuming it has potential to be strong effect.
Confusion, attacks random targets. = Spell If can affect multiple creatures, Creature/ability if only single target.
Burn, takes one damage for each attack. = Fire shield? or/if singular target Creature/ability.
Recoil, creature's attack damages you as well. = Permanent or shield.
Tiring, creature occasionaly delays.= Permanent/shield, quite similar to Procrastination.
.... I suppose light would have the counter card to this series, perhaps "Holy Regeneration" = assuming it regenerates health over time, permanent.
Paradoxing, the creature shifts around the playing area randomly unless sent back to the owner's deck. = Spell, new form of CC
Freeze Curse, attacks might cause this creature to freeze. = Creature/ability, weaker version of Squid and similar to Ice shield.