Reminds me of the WOTC days
You can then tap Marwyn to add green mana equal to her power, so anything you can do to modify her power will in turn give you more mana

Goben, Gene-Splice Savant Goro Rel, Scourge to Spiders Graviton, Fundamental Force Green Goblin Green Goblin, Back for More Green Goblin, Nemesis Green Goblin, Revenant Grendel, Spawn of Knull Grim Reaper, Lethal Legionnaire Grusilda, Monster Masher HYDRA Assault Robot HYDRA Troopers Hammerhead, Maggia Boss Hangman Helmut Zemo, Mastermind Hobgoblin, Mantled Marauder Hydro-Man, Fluid Felon Immortus, Master of Eternity Inner Demons Gangsters Iron Monger, Sadistic Tycoon Jackal, Genius Geneticist Kang Prime Kang the Conqueror Kang, Temporal Tyrant Kazuo, Ruthless Rival Kephon, Rage Incubator Kid Loki Killmonger, Ruthless Usurper Killmonger, Scourge of Wakanda King of the Coldblood Curse Kingpin's Enforcers Kingpin, Wilson Fisk Klaw, Master of Sound Klaw, Sonic Subjugator Knight of Wundagore Kraven the Hunter Kraven's Cats Kraven, Proud Predator Kree Commandos Kree Sentinel Lady Loki, Agent of Chaos Lady Octopus, Inspired Inventor Lavaborn Goblins Leader, Super-Genius Living Brain, Mechanical Marvel Living Laser Living Lies of Loki Lizard, Connors's Curse Loki Laufeyson Loki, God of Lies Loki, God of Mischief Loki, Lord of Misrule Loki, the Deceiver Luis, Pompous Pillager Lurking Lizards M.O.D.O.K

card is about 164 pixels wide by 242 pixels tall
These allow it to sense its prey from a long distance