Hydaron Keywords/Mechanics

Ok, here are the keywords and mechanics I'm introducing in Hydaron. See if you can guess which mechanic goes with which colours:

1. All creatures are Enchantment Creatures. These colours also focus on Enchantments, particulary Enchant Creatures.
2. Snatch - when this creature deals combat damage to a player, you may casttarget Instant or Sorcery card without paying that spell's mana cost.
3. Buyout (cost) - when you cast this spell, an opponent may pay (cost) to counter it. Cards with this ability may also come with extra abilities that trigger when the Buyout cost is paid, similar to Prowl.
4. Multiply – trigger: choose one - put a 1/1 red and green Elf creature token into play, or put a 1/1 red and green Kithkin creature token into play.
5. Power/toughness over 4 - similar to Naya, but a lot less irritating for opponents.