Akki Battle Squad (Extended Art) [Kamigawa: Neon Dynasty Commander] Ooze Mutant and you may spend mana

and you may spend mana as though it were mana of any type to cast that spell

its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card

Set: Secret Lair Drop Series Type: Creature — Human Monk Rarity: Rare Cost: {R} Haste

Set: Planechase 2012 Type: Artifact — Equipment Rarity: Uncommon Cost: {3} Equipped creature can't be blocked and has shroud

If you control an Urza's Power-Plant and an Urza's Tower

Akki Battle Squad (Extended Art) [Kamigawa: Neon Dynasty Commander] Ooze Mutant and you may spend manaSet: Kamigawa: Neon Dynasty Commander Type: Creature Goblin Samurai Rarity: Rare Cost: {5}{R} Whenever one or more modified creatures you control attack, untap all modified creatures you control. After this combat phase, there is an additional combat phase. This ability triggers only once each turn. (Equipment, Auras you control, and counters are modifications.)