Let's see what the rough ratios are for Feline Ferocity and how it compares: 52 mana: 37 lands plus Oreskos Explorer, Cultivate, Nissa's Pilgrimage, Sol Ring, Sword of the Animist, Hedron Archive, Herald's Horn, Dreamstone Hedron, Mirari's Wake, Zendikar Resurgent, Traverse the Outlands, Blighted Woodland, Krosan Verge, Myriad Landscape, and Hammer of Nazahn (I think it counts) -- I guess you can count Temple of the False God and Saltcrusted Steppe too but I'm not 10 "card advantage": Harmonize, Hunter's Prowess, Soul's Majesty, Skullclamp, Staff of Nin, Heirloom Blade, Kindred Summons, Zendikar Resurgent, Alms Collector, Herald's Horn (kinda) -- I don't count Hedron Archive or Dreamstone Hedron 10 targeted removal: Leonin Relic-Warder, Qasali Pridemage, Condemn, Crushing Vines, Wing Shards, Relic Crush, Argentum Armor, Stalking Leonin, Qasali Slingers, and kinda Grappling Hook 2 board wipes: Divine Reckoning and Rout 0 recursion 2 somewhat flexible tutors: Taj-Nar Swordsmith and Nazahn, Revered Bladesmith 0 graveyard hate 1 what I'd consider a surprise "I Win" card, Kindred Summons, and maybe a huge White Sun's Zenith, but otherwise nothing too surprising Obviously these ratios are a simplification and subject to opinion, but it's still a good way to quickly identify potential problems

Art by : Hagiya Kaoru How to get it : MTG Arena promo or occasionally available on the MTG Arena Store Value : Free with the promo or 1,500 to 2,250 gold / 300 to 450 gems Japanese Alternate Art Domri Alternate art of Domri Rade
Even if the flip chance was 50/50 (which requires aprox 20 instants/sorceries) I wouldn't want to run it
Perception Bobblehead
Shadowmage Infiltrator 1.5 (B cube) Power 2.2 Support 1.0 Shadowmage Infiltrator has been around in my cube for a long time and is starting to wobble on the margin between the A and B cubes due to the power creep
Veloci-Ramp-Tor does not disappoint, giving us a few powerful friends from the past alongside deadly new Dinosaur critters