Fountain Watch - The List (PLIST) Pokemon Whenever an enchantment is put

Whenever an enchantment is put into a graveyard from the battlefield

They claim that the first arrow *is* the warning

When Sleeper Agent enters the battlefield

Trample Cultivator Colossus's power and toughness are each equal to the number of lands you control

You create a tapped Powerstone token for each nonland card in that player's graveyard that was put there from the battlefield this turn

Fountain Watch - The List (PLIST) Pokemon Whenever an enchantment is putArtifacts and enchantments you control have shroud. (They can't be the targets of spells or abilities.) The Cho Arrim didn't rely only on a secret location to protect their Fountain.