If you dont find it early in the game, you can choose to Dash Ragavan instead to get instant value in some shape
Cards like Arcades, The Strategist or Plagon, Lord of the Beach turn Charix into effectively a 17/17 for very little effort
Enclave Cryptologist isn't great at beating down (although it can sometimes attack with the help of Time of Heroes), but its a great way of filtering through our deck, becoming a looter on Turn 2

Advanced Search Sets Random Syntax Amber Prison Aphetto Alchemist Ashnod's Battle Gear Berg Strider Blasting Station Bloody Betrayal Cat-Owl Catch // Release Catch // Release Clock of Omens Corridor Monitor Dee Kay, Finder of the Lost Deserter's Quarters Dross Scorpion Elaborate Firecannon Elder Druid Endoskeleton Entrancing Lyre Error-9, Viral Node Fain, the Broker Filigree Sages Flowstone Armor Frightshroud Courier Furnace Reins Galvanic Key Gauntlets of Chaos Goblin Archaeologist Grinding Station Guac & Marshmallow Pizza Haunted Hellride Helm of Possession Hijack Hyperion Blacksmith Iceberg Titan Immovable Rod Infernal Captor Infuse Invoke the Winds Involuntary Employment Janjeet Sentry Jet's Brainwashing Jolt Juxtapose Kefnet's Last Word Living Brain, Mechanical Marvel Lumengrid Augur Magus of the Unseen Manifold Key Metallic Mastery Mind Over Matter Mirran Spy Mobile Garrison Momo's Heist Nature's Chosen Origin of Iron Man Panther Pounce Phyrexian Gremlins Press for Answers Reality Ripple Rod of Spanking Rust Tick Salvaging Station Sewer-veillance Cam Sibling Rivalry Sleeper Dart Sonic Screwdriver Sonic Screwdriver Spirit Shield Staff of Compleation Staff of Domination Steal Artifact Systems Override

We can also look to spells that return cards in your graveyard to either your hand or play
In either of these cases, neither player's life total will change