CardName: Tripwire
Cost: 1
Type:
Pow/Tgh: /
Rules Text: {1}, Sacrifice Tripwire: Tripwire deals 1 damage to target
creature attacking you or a planeswalker you control. Spells
you cast that target it cost {2} less until end of turn.
Flavour Text:
Set/Rarity: Multiverse Design Challenge None
Tripwire
, Sacrifice Tripwire: Tripwire deals 1 damage to target creature attacking you or a planeswalker you control. Spells you cast that target it cost less until end of turn.
See Challenge # 135.
I tried to think of ways there could be lots of artifacts but that they play differently in different colours.