Debilitating Injury

Enchant creature
Enchanted creature gets -2/-2.

Transcendent Envoy

Flying
Aura spells you cast cost {1} less to cast.

When Thraben Inspector enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Nomad Outpost enters tapped.
{T}: Add {R}, {W}, or {B}.

Lifelink
Whenever an enchanted creature dies, draw a card for each Aura you controlled that was attached to it.

When Ironclad Slayer enters, you may return target Aura or Equipment card from your graveyard to your hand.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Enchant creature
Enchanted creature gets -3/-3.

When Heliod's Pilgrim enters, you may search your library for an Aura card, reveal it, put it into your hand, then shuffle.

Enchant creature
Enchanted creature has "At the beginning of your upkeep, sacrifice a creature."