Time has been somewhat cruel to Sarkhan, as the price of the card has more than halved since the launch of Takir: Dragonstorm
And if none of the colored options do the trick, we have artifact draw and colorless draw covered too

Abundance Aladdin's Lamp Alhammarret's Archive Archmage Ascension Asmodeus the Archfiend Blood Scrivener Breathstealer's Crypt Chains of Mephistopheles Dakmor Salvage Darkblast Enduring Renewal Eruth, Tormented Prophet Forbidden Crypt Golgari Brownscale Golgari Grave-Troll Golgari Thug Grave-Shell Scarab Greater Mossdog Hullbreacher Island Sanctuary Jace, Wielder of Mysteries Laboratory Maniac Laboratory Maniac Life from the Loam Living Conundrum Magus of the Chains (playtest) Mangara's Tome Moldervine Cloak Necroplasm Nightmare Void Notion Thief Obstinate Familiar Ormos, Archive Keeper Out of the Tombs Parallel Thoughts Phial of Galadriel Plagiarize Possessed Portal Pursuit of Knowledge Reed Richards, Smartest Man Ring of Ma'rf Sages of the Anima Scion of Halaster Shambling Shell Shared Fate Shenanigans Stinkweed Imp Teferi's Ageless Insight Thought Reflection Tomorrow, Azami's Familiar Uba Mask Underrealm Lich Urabrask, Heretic Praetor Vnwxt, Verbose Host Words of War Words of Waste Words of Wilding Words of Wind Words of Worship Zur's Weirding

Mew is not a competitively viable card , with just one 20-damage attack that also doubles up as a deck reveal for your opponent
Overall, this land card is nothing inspiring, but that simplicity makes it astonishing compared to others that seem to have too much