Good on its own or in combination with wheel effects like Windfall, Smothering Tithe will make a silly amount of mana if your table doesnt know to get rid of it on sight
Topplegeist is a powerful low drop thats still relevant as the game goes on, and it was a high pick in Shadows draft
The chase card, of course, is Charizard, as this is the only rendition of the card that is colorless and it is far and away the most valuable Charizard card of all time
Now that Chaos is out of the picture, I need not worry about Attribute ratios
Ulalek is very strong, and lets you double up on all your eldrazi for a low cost of two mana, while that trigger also doubles any other abilities and spells on the stack
Thoughtcast Drawing two cards usually costs 3 mana if its a sorcery like Divination and 4 mana if its an instant like Glimmer of Genius