Treasure is always present in a game, accelerates decks forward, smooths out mana issues, and is difficult to ever truly interact with, except by hosing other fair decks
On top of that, if the opponent blocks one of your red Prowess Creatures with Sanctifier en-Vec, you can force the Sanctifier to die in combat by pointing Stomp at the opponents face
Horizon Seeker I think re-useable land tutoring is good, snow-lands are basic lands, so that's neat, 3 to get out and 2 to use is a lot of mana to invest in a potential land tutor for a basic though, and it's not an elf, but rather a human warrior, which generally tend to be white (though obviously not always)
Aang, A Lot to Learn Aang, the Last Airbender Abdel Adrian, Gorion's Ward Abigale, Poet Laureate Abomination of Llanowar Abomination, Terrifying Titan Adelbert Steiner Adeliz, the Cinder Wind Adwal, Breaker of Chains Aegar, the Freezing Flame Agent 13, Sharon Carter Agent Maria Hill Akawalli, the Seething Tower Akiri, Fearless Voyager Alena, Kessig Trapper Alessos and Pras, Acrobats Alex Wilder, Runaway Alexios, Deimos of Kosmos Alharu, Solemn Ritualist Alirios, Enraptured Alora, Merry Thief Alpharael, Dreaming Acolyte Altanak, the Thrice-Called Ambassador Blorpityblorpboop Amber Gristle O'Maul Ambrosia Whiteheart Anafenza, Kin-Tree Spirit Anara, Wolvid Familiar Anax, Hardened in the Forge Anep, Vizier of Hazoret Ant-Man, Colony Commander Ant-Man, Reformed Rogue Appa, Aang's Companion Appa, Loyal Sky Bison April, Reporter of the Weird Arabella, Abandoned Doll Araumi of the Dead Tide Arbaaz Mir Ardenn, Intrepid Archaeologist Argyr, Tidal Spinner Armix, Filigree Thrasher Arnim Zola, Bio-Fanatic Arno Dorian Arnyn, Deathbloom Botanist Aron, Benalia's Ruin Arvad the Cursed Arwen Undmiel Aryel, Knight of Windgrace Ash, Party Crasher Ashe, Princess of Dalmasca Atlas, Sizable Stooge Attuma, Atlantean Warlord Aunt May Axelrod Gunnarson Azula, On the Hunt Baird, Argivian Recruiter Baird, Steward of Argive Balmor, Battlemage Captain Barktooth Warbeard Baron Bertram Graywater Baron Strucker, HYDRA Overlord Barret Wallace Barrowin of Clan Undurr Bartel Runeaxe Bartolom del Presidio Basil, Cabaretti Loudmouth Baxter Stockman Beast, Erudite Aerialist Big Bertha Bilbo, Retired Burglar Bill Ferny, Bree Swindler Bill the Pony
