I have analyzed that you should have two different Maelstroms to ride.
V-EB12/033 R アナライズ・シューター Analyze Shooter
Grade 1 / Normal Unit / Magallanica – Aqua Force – Aquaroid
“A weak point attack with maximum power!”
AUTO (RC) When the attack it boosted hits a vanguard, COST [Soul Blast 1 & Discard a card from your hand], search your deck for up a total of up to two cards with “Maelstrom” in their different card names, reveal them and put them into your hand, and shuffle your deck.