Target opponent separates all creatures into two piles. You choose one of those piles. For each creature in the chosen pile, its controller sacrifices it.
“With blood spilt, Inishtu will reveal to us who is false and who is righteous.”
When Soli Chronicler enters, judge another target creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)
Flying When Soli's Blessed enters, judge another target creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you. {3}{W}{U}: Tap target creature and put a +1/+1 counter on Solitary Guardian.
Whenever Solvent Tide attacks, create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)
A growing alchemical life form is easy. A sustainable one, not so.
Whenever another creature you control enters, target opponent loses 1 life and you gain 1 life. Sacrifice Somber River Bearer: Creatures you control gain indestructible until end of turn.
Look at the top five cards of your library. You may reveal a nonland card from among them. If you do, put that card into your hand and cast a copy of it without paying its mana cost. Put the rest into your graveyard.
When Something in the Woods enters or at the beginning of your upkeep, Something in the Woods explores. If it explores a creature card, you may have it become a copy of that card. (It loses this ability. To explore, reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this, then you may put that card into your graveyard.)
When Somnambulance enters, each player conjures a card named Fatigue and puts it on top of their library. (It's a colorless sorcery that costs {2} with “Draw a card.”) Whenever a player casts a spell named Fatigue, you may draw a card. If you do, you lose 1 life.
Create a 4/4 red Dragon creature token with flying. Showcase {5}{U}{R}(Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)
Alpha (You may have this creature enter with a +1/+1 counter on it. If you do, it becomes alpha and can only attack alone.) Whenever a creature you control attacks alone, untap all lands you control.