Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)When Nightkin Ambusher enters, target player gets four rad counters.Nightkin Ambusher can't be blocked as long as defending player has a rad counter.
Vigilance, trampleRampaging Yao Guai enters with X +1/+1 counters on it.When Rampaging Yao Guai enters, destroy any number of target artifacts and/or enchantments with total mana value X or less.
FlyingWhenever another nontoken artifact enters under your control, create a 2/2 white Human Knight creature token with "This creature gets +2/+2 as long as an artifact entered the battlefield under your control this turn."Crew 2
Enchant creatureEquip abilities you activate that target enchanted creature cost less to activate.Aura spells you cast that target enchanted creature cost less to cast.Enchanted creature gets +2/+2 for each Aura and Equipment attached to it.
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)Equip (: Attach to target creature you control. Equip only as a sorcery.)
When Contagion Clasp enters, put a -1/-1 counter on target creature., : Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)