So if the starting hand contains Servant or Mastery, then (searching then) scaling Servant is almost always the best first action
Evolves From Other cards with Evoharmony Cards by saino misaki Frequently Asked Questions How can I obtain the Sylveon with 1-Star rarity from the Eevee Grove set
I also added in a few closeups of my favorites, that way you get a better look at the details

Nadir Kraken Noxious Gearhulk Obscura Interceptor Psychosis Crawler Sheoldred, Whispering One Solemn Simulacrum Sun Titan Toluz, Clever Conductor Wonder Instants (13) Anguished Unmaking Arcane Denial Change of Plans Dihada's Ploy Dovin's Veto Esper Charm Lethal Scheme Obscura Charm Obscura Confluence Path to Exile Swords to Plowshares Teferi's Protection Void Rend Sorceries (11) Council's Judgment Damn Dread Return Emeria's Call Farewell Lingering Souls Living Death Reanimate Stitch Together Toxic Deluge Unburial Rites Enchantments (4) Animate Dead Drake Haven Teferi's Ageless Insight Whip of Erebos Artifacts (9) Arcane Signet Azorius Signet Dimir Signet Fellwar Stone Mind Stone Orzhov Signet Sol Ring Talisman of Dominance Talisman of Progress Lands (35) Arcane Sanctum Brightclimb Pathway Celestial Colonnade Clearwater Pathway Command Tower Creeping Tar Pit Demolition Field Deserted Beach Dimir Aqueduct Drowned Catacomb Evolving Wilds Fabled Passage Glacial Fortress Godless Shrine Hallowed Fountain Hive of the Eye Tyrant Island x4 Isolated Chapel Karoo Plains x4 Raffine's Tower Shattered Sanctum Shipwreck Marsh Spymaster's Vault Swamp x3 Terramorphic Expanse Watery Grave Raffine, Scheming Seer is a great Esper commander

So its only natural that Spellcasters contain some of the most powerful monsters in the game, too
4th Layout (estimated at around 2001) - Reordered layout where cards are directly connected on not split into 16 card sections anymore