I don’t think this make it to be HS, because we have more choice for traps, we can use it on a cell, don’t just only action of enemy. It’s just my idea for consider.
Or some creatures can create a trap, Yu-gi-oh TCG have trap cards, HS have trap cards, so I think trap cards is a idea that we can make it better, because our creatures can move, don’t just stand.
“Secrets” in Hearthstone were little more than a chore, and Trap cards in Yu-Gi-Oh! had so many triggers that they were basically quick-cast magic cards.
I think the best way to implement Traps in Faeria would be to reveal the card itself to the opponent - but not the target - the moment you play the Trap card. Once the condition is met, the Trap triggers once and then it is removed from the game.
Eruption: Trap 2f MM
Target: Any land
Trigger: When an enemy creature moves onto or across this space, deal 4 damage to it.
Way of the Toad: Trap 4f LL
Target: Any friendly creature
Trigger: When this creature is attacked, the attacking creature takes damage instead of this creature.
Ambush!: Trap 3f
Target: Any space
Trigger: When the opponent summons a creature in this space, summon 3 Hunted Outlaws in adjacent spaces.
Sincere Flattery: Trap 0f
Target: Any enemy creature
Trigger: When the opponent plays a spell on this creature, add a copy of that spell to your hand. It costs 1f and requires zero special lands.