Pay 20 life, get 20 cards
In a two-player game, Secret Rendezvous is worse than playing no card at all, but in a four-player game, its a great way to start an alliance to join up against a common enemy
Furthermore, its attack copies the attacks of any of N's Pokmon on the bench, meaning that the strategy has multiple versatile options that allow it to adapt to any matchup

Abomination of Llanowar Belbe, Corrupted Observer Deathbloom Ritualist Deathrite Shaman Drey Keeper Eclipsed Elf Elvish Vatkeeper Glissa Sunslayer Glissa, Herald of Predation Glissa, the Traitor Glowspore Shaman Golgari Findbroker Golgari Guildmage Harald, King of Skemfar High Perfect Morcant Izoni, Center of the Web Izoni, Thousand-Eyed Jarad, Golgari Lich Lord Kagha, Shadow Archdruid Korozda Guildmage Lathril, Blade of the Elves Llanowar Dead Lluwen, Exchange Student Lluwen, Imperfect Naturalist Morcant's Loyalist Nath of the Gilt-Leaf Ochran Assassin Poison-Tip Archer Rakish Scoundrel Savra, Queen of the Golgari Shaman of the Pack Shessra, Death's Whisper Stoic Grove-Guide Storrev, Devkarin Lich Swarm Guildmage Tribune of Rot Trystan's Command Twinblade Assassins Tyvar the Bellicose Underrealm Lich Wardens of the Cycle Winnowing Forces