Silent Ridge enters tapped. {T}: Add {B}. Desertcycling {1}{B}({1}{B}, Discard this card: Search your library for a Desert card, reveal it, and put it into your hand, then shuffle.)
Return target creature card from your graveyard to your hand. Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)
Target player reveals a number of cards from their hand equal to the number of creature cards in your graveyard. You choose one of them. That player discards that card.
Erinoss had once had a vision of Heletrios, who told him the truth about his death.
Create a 1/1 green Squirrel creature token. The next creature spell you cast this turn can be cast as though it had flash. As you cast that spell, it gains voracious 2. (As it enters, you may sacrifice up to two artifacts and/or creatures. That creature enters with that many +1/+1 counters on it.)
Skylight Fortress enters tapped. When Skylight Fortress enters, you may search your library for a card named Skylight Fortress, reveal it, put it into your hand, then shuffle. {T}: Add {C}.
Equipped creature has “{1}, {T}: This creature deals 1 damage to any target.” Whenever equipped creature deals damage to a creature with power 5 or greater, sacrifice Sling of the Meek. If you do, destroy that creature. Equip {3}
Slipstream Horizon enters tapped. {T}: Add {U} or {R}. {U}{R}, {T}, Sacrifice Slipstream Horizon: Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)