mtg standard banned cards Exploring The Previously That Are Legal In Pioneer Banned Cards | MagicArena Wiki

Slash of Light is a two-mana monowhite instant spell that deals damage to a single creature equal to the number of creatures and equipment you have on your board

You divide the damage as you put the triggered ability on the stack, not as it resolves

All of these cards were ways to use excess lands that the deck found later in the game, either by discarding Sheltered Thicket itself or providing a way to convert lands into fresh cards, and Nahiri allowed her controller to discard Forest #100 to try to dig for some action

You will regularly see that stuff getting dropped too

Enchanted permanent doesn't untap during its controller's untap step