Nomad Outpost

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

Ironclad Slayer

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

Enchant creature
Enchanted creature gets -2/-2.

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

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

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

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.

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

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