Budget Alternatives to Zhou Yu, Chief Commander

Slipstream Serpent $0.03 7U · Serpent This creature can't attack unless defending player controls an Island. Veiled Serpent $0.05 2U · Enchantment When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent cre... Floodchaser $0.06 5U · Elemental This creature enters with six +1/+1 counters on it. Vodalian Serpent $0.09 3U · Serpent Kicker {2} Sealock Monster $0.11 3UU · Octopus This creature can't attack unless defending player controls an Island. Ethereal Whiskergill $0.11 3U · Elemental Flying Slipstream Eel $0.12 5UU · Fish Beast This creature can't attack unless defending player controls an Island. Manta Ray $0.12 1UU · Fish This creature can't attack unless defending player controls an Island. Steam Frigate $0.20 2U · Human Pirate This creature can't attack unless defending player controls an Island. Serpent of the Endless Sea $0.24 4U · Serpent Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you cont... Deep-Sea Serpent $0.28 4UU · Serpent This creature can't attack unless defending player controls an Island. Giant Shark $0.32 5U · Shark This creature can't attack unless defending player controls an Island. Island Fish Jasconius $0.34 4UUU · Fish This creature doesn't untap during your untap step. Pirate Ship $0.78 4U · Human Pirate This creature can't attack unless defending player controls an Island. Armored Galleon $1.03 4U · Human Pirate This creature can't attack unless defending player controls an Island.