Some channels are better than others and it really comes down to what kind of goal you are looking to accomplish
When you cast that spell, Ogre Battlecaster gets +X/+0 until end of turn, where X is that spell's mana value
2023-06-16 Snow mana is not a type of mana
The Hunters Grand Abolisher (Dual-Bladed Hunter) - $11 Nonfoil / $13 Foil Archaeomancer (Hero of Hoarfrost Reach) - $0.30 Nonfoil / $3.80 Foil Grim Haruspex (Nargacuga Stalker) - $1.50 Nonfoil / $5.40 Foil Imperial Recruiter (Bherna Huntmaster) - $12 Nonfoil / $15 Foil Champion of Lambholt (Champion of Kotoko [sic]) - $2.45 Nonfoil / $13 Foil Total = $27.34 Nonfoil / $50.20 Foil What I would normally call a 'middling' Secret Lair value-wise, but here it's the best of the bunch

House, President and CEO Preston Garvey, Minuteman Aradesh, the Founder Automated Assembly Line Battle of Hoover Dam Brotherhood Outcast Brotherhood Scribe Codsworth, Handy Helper Commander Sofia Daguerre Gary Clone Idolized Overencumbered Overseer of Vault 76 Paladin Danse, Steel Maverick Pre-War Formalwear The Prydwen, Steel Flagship Securitron Squadron Sentry Bot Sierra, Nuka's Biggest Fan Vault 13: Dweller's Journey Vault 75: Middle School Vault 101: Birthday Party Yes Man, Personal Securitron Curie, Emergent Intelligence James, Wandering Dad James, Wandering Dad Jason Bright, Glowing Prophet Mirelurk Queen Nerd Rage Nick Valentine, Private Eye Piper Wright, Publick Reporter Radstorm Robobrain War Mind Struggle for Project Purity Synth Infiltrator Vexing Radgull Bloatfly Swarm Butch DeLoria, Tunnel Snake Feral Ghoul Hancock, Ghoulish Mayor Infesting Radroach Nuclear Fallout Ruthless Radrat Screeching Scorchbeast V.A.T.S

They dont represent the same scalable ceiling, but at least do a lot of the mana investment