(It's an artifact with "T: Sacrifice this artifact: Add one mana of any color.") Create two 4/4 blue and red Elemental creature tokens
Just picturing a sky full of Birds attacking everyone but me, like something out of Hitchcock, puts a smile on my face
Kalonian Tusker Kalonian Tusker is nice if you support non-ramp decks in green but a bit too low impact if you dont because even if the GG mana cost for a 3/3 is incredibly efficient, its body may be too small for the slower green decks like Jund, Junk, and Naya
Legendary Planeswalker - Ashiok Planeswalker (CTRL to add secondary) Recursion Farsight Ritual Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Look at the top four cards of your library
You might take away their fourth land or their preferred three drop but that won't actually do anything for two or three turns which greatly reduces the value of Blackmail being one mana
Just be sure to bring a Horn of Greed so you don't run out of steam