Raging River [30th Anniversary Edition] Plains Island Then that player loses all

Then that player loses all unspent mana and you add the mana lost this way

Set: 30th Anniversary Edition Type: Sorcery Rarity: Rare Cost: {X}{B} Target player discards X cards at random

Firesong and Sunspeaker deals 3 damage to target creature or player

"Test 12: Boots now protect wearer from all hazards except blisters

Exile The Great Synthesis

Raging River [30th Anniversary Edition] Plains Island Then that player loses allSet: 30th Anniversary Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.