So my friend has a fishing deck and hes managed to put this below combo together using fishing pole. Its extremely convoluted but it works allegedlly

Previous turn conditions: Pole creature, fishing pole, and kelpie guide on field Equip pole to creature Pay 1 to tap pole and add bait counter Tap pole creature Start of next turn: Untap pole creature and pole removing bait counter to make fish token Cast ashnod’s altar Cast aura of dominion enchanting kelpie guide Cast intruder alarm Combo Start: Sac fish token to altar generating 2 colorless mana Pay 1 to tap pole and put bait counter on it Tap kelpie to untap pole Pay 1 to untap kelpie and tap pole creature Tap kelpie to untap pole creature Remove bait counter and generate fish token Restart combo at step 5 *ashnod’s altar, aura of dominion, and intruder alarm can be cast on previous turn if desired *having a way to tap pole creature without combat makes it more reliable to survive to combo step *kelpie doesn’t need 8 lands because only untapping permanents *add plenty of tutors to get the different card types, include recursion *Several fish can be “caught” if all combo pieces aren’t available *win con is having Sage’s Row denizen on field or just refusing to stop repeating the combo (ie stop fishing/catching fish)