Knowledge Exploitation [Morningtide] Friday Night Magic 2001 you may change "swampwalk" to

you may change "swampwalk" to "plainswalk

Hail from Tolaria the ever changing 'Dane

Set: Limited Edition Beta Type: Sorcery Uncommon Cost: {3}{G} Destroy all Islands

(Then put Timetwister into its owner's graveyard

Molasses comes to mind

Knowledge Exploitation [Morningtide] Friday Night Magic 2001 you may change "swampwalk" toSet: Morningtide Type: Tribal Sorcery Rogue Rare Cost: {5}{U}{U} Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.) Search target opponent's library for an instant or sorcery card. You may cast that card without paying its mana cost. Then that player shuffles their library.