Abyssal Gatekeeper Agate Assault Agate Instigator Agate-Blade Assassin Azor's Gateway Azorius Guildgate Baldur's Gate Bar the Gate Basilisk Gate Battlegate Mimic Beluna's Gatekeeper Beluna's Gatekeeper Black Dragon Gate Boros Guildgate Call the Gatewatch Case of the Gateway Express Castigate Celestial Gatekeeper Cemetery Gate Cemetery Gatekeeper Cho-Arrim Legate Citadel Gate Cliffgate Congregate Consulate Skygate Cryptic Gateway Deepwood Legate Demon of Death's Gate Deploy the Gatewatch Dimir Guildgate Dolmen Gate Draconian Gate-Bot Floodgate Fumigate Gate Colossus Gate Hound Gate Smasher Gate of the Black Dragon Gate to Manorborn Gate to Phyrexia Gate to Seatower Gate to Tumbledown Gate to the Afterlife Gate to the Citadel Gate to the ther Gatebreaker Ram Gatecreeper Vine Gatekeeper Gargoyle Gatekeeper of Malakir Gates Ablaze Gates of Istfell Gatewatch Beacon Gateway Plaza Gateway Shade Gateway Sneak Gods' Eye, Gate to the Reikai Golgari Guildgate Gond Gate Grond, the Gatebreaker Gruul Guildgate Guadosalam, Farplane Gateway Guardian of the Gateless Heap Gate Heaven's Gate Hengegate Pathway Hold the Gates Irrigated Farmland Izzet Guildgate Krydle of Baldur's Gate Kyren Legate Lavabrink Floodgates Legate Lanius, Caesar's Ace

Players who put in overtime at work to be able to afford that last dual land, long-time players who considered their collection to be something of a nest egg, people who convinced their spouses that these Reserved List cards were a good investment as well as a fun weekend hobby
Also in the category of user-friendliness, I love always being able to catch a game of Magic s booster draft (where players assemble decks by taking one card out of a pack before passing it to the next person) and sealed deck (where players create decks using the contents of several new packs)
Most of those keywords will have "When", "Whenever", or "At" in their reminder texts
This can simply mean no attacking until removal for Avacyn is found, or enough for an alpha strike is amassed
Ideally, I would not leave a Dream Trawler post board since its weak against both Shatter the Sky and counters but I just dont have anything better