ST10-013-eustasscaptainkid's effect means that any opponents will have to have 7000 power on any of their attacks to threaten you, but even then, a simple counter can deal with those
Playing a deck that naturally produces a lot of Energy will always lend itself to Harnessed Lightning
It towers over him, giving the illustration a helpful, and dreadful, sense of scale
And it's not hard to guess why vampire tribal would be seeing a resurgence in the last couple of months - just take a look at the MTG release schedule

Purphoros, God of the Forge Zerg Purphoros, God of the Forge Illustration by Eric Deschamps Commander (1) Planeswalkers (3) Chandra, Acolyte of Flame Chandra, Awakened Inferno Zariel, Archduke of Avernus Creatures (36) Beetleback Chief Brash Taunter Chandra's Incinerator Conspicuous Snoop Dockside Extortionist Goblin Chainwhirler Goblin Chieftain Goblin Chirurgeon Goblin Cratermaker Goblin Diplomats Goblin Goliath Goblin King Goblin Matron Goblin Ringleader Goblin Tinkerer Goblin Trashmaster Goblin Warchief Goblin Wizard Hobgoblin Bandit Lord Kiki-Jiki, Mirror Breaker Krenko, Mob Boss Krenko, Tin Street Kingpin Legion Warboss Magus of the Moon Mogg Mob Moria Marauder Muxus, Goblin Grandee Pashalik Mons Quakebringer Siege-Gang Commander Skirk Prospector Squee, the Immortal Sunspine Lynx Terror of the Peaks Torbran, Thane of Red Fell Treasonous Ogre Instants (3) Chaos Warp Flare of Duplication Valakut Awakening Sorceries (4) Goblin Offensive Release the Gremlins Shatterskull Smashing Vandalblast Enchantments (8) Aggravated Assault Blood Moon Experimental Frenzy Fable of the Mirror-Breaker Goblin Bombardment Impact Tremors Lifeline Roiling Vortex Artifacts (11) Arcane Signet Fellwar Stone Gauntlet of Power Icon of Ancestry Mox Diamond Phyrexian Altar Ruby Medallion Skullclamp Sol Ring Vanquisher's Banner Wayfarer's Bauble Lands (34) Bonders' Enclave Den of the Bugbear Goblin Burrows Kher Keep Mountain x29 Three Tree City Purphoros, God of the Forge is an incredible commander for a few reasons

(2021-04-16) In a multiplayer game, you choose which opponent takes the prescribed action as the spell resolves