mtg card craterhoof Behemoth (Showcase) (Japanese) [Tarkir: Dragonstorm] creatures you control gain trample and get +X/+X until end of turn Craterhoof Behemoth - MTG Proxy

I'm just happy I could get him to stop playing Fallout: New Vegas for a bit to work on this set

This is because Splinterfright is not in your graveyard when the Scavenge ability resolves, as you already moved it to exile when you activated the ability

Black Chocobo Crop Rotation Elvish Reclaimer Expedition Map Gaea's Balance Gladiolus Amicitia Golos, Tireless Pilgrim Knight of the Reliquary Nervous Gardener Park Map Perilous Forays Realm Seekers Reap and Sow Sowing Mycospawn Sprouting Goblin Strata Scythe Sylvan Scrying Tempt with Discovery Ulvenwald Hydra Urza's Cave Vibrance Weathered Wayfarer Wight of the Reliquary World Map

Destroy target colorless nonland permanent

Grief Tyrant Heres a beefy creature

In this case you want Herald of Secret Streams, Murkfiend Liege, Vanquisher's Banner, Door of Destinies, Icon of Ancestry, and Coat of Arms