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He also allows you to Special Summon a Yorozuy monster from your hand which is extremely helpful

Ive personally been victim to seeing multiple 10+ mana value creatures come down on turn 6 because my opponent swung with Lord of Riots and one or two other small creatures

The immense clock Anzrag provides in short order can potentially help Gruul midrange decks have a better chance of racing combo decks like Lotus Field combo, and the extra combat steps can help break board stalls against decks like Boros Convoke

The ability can't reduce the amount of colored mana you pay for a spell

With this active, it allows you to attack stronger monsters without any fear of hurting your Life Points