Its a bit complex compared to play equipment and attack, though the precon does come with punch-out counters to help this issue
Cards like Kaalia of the Vast and Kaalia, Zenith Seeker fit perfectly into angel-focused decks and can even lead the deck as your commander
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You can either make an infinite loop of casting Song / Fire / Geyser and Reiterate'ing it with Buyback , which you can use to make an arbitrarily large Storm count to cast a giant Mind's Desire, Temporal Fissure, or Ignite Memories
Klauth is a massive red dragon from Storm King's Thunder and produces huge amounts of mana that scale with the number of creatures his controller attacks with
Sure, your designers had no idea what Commander was when they made you, and you did have your time in the limelight in Standard, but it's just so difficult not to wonder what would have happened if you, like your opposing cousinopposing cousin, had ended up with the "each opponent" wording instead of "target player"