Alton OConnell I probably have more experience with Seeker cards than any other class in Arkham Horror
Whenever a Rat dies, put a +1/+1 counter on each Cat you control
Lotus 2 "Geiss Grinder Golem 1 "Hamon, Lord of Striking Thunder 1 "Uria, Lord of Searing Flames 1 Raviel, Lord of Phantasms 3 "Dark Beckoning Beast 1 "Chaos Summoning Beast 1 "Dark Summoning Beast 2 "Summoning God of Phantasms Magic 1 sheet "Foolish Burial 1 card "One for One 3 cards "Nightmare Pain 1 card "Mature Chronicle 2 cards "Super Polymerization 3 "Opening of the Spirit Gates 2 "Fallen Paradise 1 card "Dimension Fusion Destruction 1 "Cerulean Skyfire Traps 2 Traps "Eternal Favourites 1 card "Hyper Blaze Extras 3 "Yubel-Das Ewig Liebe Wachter 1 "Armityle the Chaos Phantasm (Updated from: Armityle the Chaos Phantom) 1 "Armityle the Chaos Phantasm - Phantom of Fury 1 "Phantasm Emperor Trilojig 1 "Starving Venom Fusion Dragon 1 "Predaplant Dragostapelia 1 "Salamangreat Almiraj 1 "Relinquished Anima 1 "Linkuriboh 1 "Borreload Dragon 2 "Superdreadnought Rail Cannon Gustav Max Item ID: 333740639

Tiger King then activates with the help of Eagle, bringing Barong and Avrata straight from my deck
Lukka, Coppercoat Outcast Lukka what we have here
Any such spell or even a Pyromatics does the job with infinite mana, but if you can burst out 15 mana with your Treasures, Crackle does 20 mana to four targets, which can end the game