It's a Giant 5

1 Aegar, the Freezing Flame

Creature 28

1 Aegar, the Freezing Flame 1 Basalt Ravager 1 Berg Strider 1 Boldwyr Intimidator 1 Bonecrusher Giant 1 Borderland Behemoth 1 Burnished Hart 1 Calamity Bearer 1 Clever Impersonator 1 Cyclone Summoner 1 Frost Titan 1 Furystoke Giant 1 Galecaster Colossus 1 Giant Harbinger 1 Hamletback Goliath 1 Inferno Titan 1 Niv-Mizzet, Parun 1 Quakebringer 1 Shatterskull Charger 1 Solemn Simulacrum 1 Stinkdrinker Daredevil 1 Sunrise Sovereign 1 Surtland Flinger 1 Tectonic Giant 1 Thryx, the Sudden Storm 1 Thundercloud Shaman 1 Toralf, God of Fury 1 Torbran, Thane of Red Fell

Spell 34

1 Arcane Denial 1 Arcane Signet 1 Battle of Frost and Fire 1 Blasphemous Act 1 Chain Reaction 1 Commander's Sphere 1 Counterspell 1 Crush Underfoot 1 Fact or Fiction 1 Furious Rise 1 Hazoret's Monument 1 Invasion of the Giants 1 Izzet Signet 1 Kefnet's Monument 1 Marit Lage's Slumber 1 Maskwood Nexus 1 Mind Stone 1 Mizzium Mortars 1 Nevinyrral's Disk 1 Pyre of Heroes 1 Ravenform 1 Reflections of Littjara 1 Replicating Ring 1 Skred 1 Skyclave Relic 1 Sol Ring 1 Squash 1 Storm's Wrath 1 Sunbird's Invocation 1 Swiftfoot Boots 1 Talisman of Creativity 1 Thought Vessel 1 Vanquisher's Banner 1 Windfall

Land 38

1 Ash Barrens 1 Command Tower 1 Desolate Lighthouse 1 Faceless Haven 1 Golden Guardian 9 Island 1 Kazuul's Fury 17 Mountain 1 Path of Ancestry 1 Reliquary Tower 1 Rogue's Passage 1 Shivan Reef 1 Temple of Epiphany 1 Volatile Fjord