As long as you control an enchantment, Blood-Cursed Knight gets +1/+1 and has lifelink. (Damage dealt by this creature also causes you to gain that much life.)
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.
Hangarback Walker enters with X +1/+1 counters on it.When Hangarback Walker dies, create a 1/1 colorless Thopter artifact creature token with flying for each +1/+1 counter on Hangarback Walker., : Put a +1/+1 counter on Hangarback Walker.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)When Sylvan Messenger enters, reveal the top four cards of your library. Put all Elf cards revealed this way into your hand and the rest on the bottom of your library in any order.
When Thopter Engineer enters, create a 1/1 colorless Thopter artifact creature token with flying.Artifact creatures you control have haste. (They can attack and as soon as they come under your control.)
, Sacrifice a creature: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.