Outside of a Ponder or Preordain unbanning, which I doubt well see any time soon, Expressive Iteration is the gold standard for cheap card selection, and advantage
The card shows Froslass slipping into a house on the night of a full moon with a strange look in its eye
Can You Respond to Dredge
Just look at the value it provides
Abilities that apply "as [this creature] enters the battlefield," such as choosing a color with Diamond Knight, are also unaffected
Boartusk Liege Boggart Ram-Gang Boom Scholar Feral Animist Goblin Anarchomancer Grumgully, the Generous Mudbrawler Raiders Ol' Buzzbark Redshift, Rocketeer Chief Rulik Mons, Warren Chief Scarwood Goblins Scuzzback Marauders Scuzzback Scrapper Tattermunge Duo Tattermunge Maniac Tattermunge Witch The Space Family Goblinson Vexing Shusher Wort, the Raidmother Zhur-Taa Goblin