Hive of the Eye Tyrant 8.5 This cycle appears to be quite the significant upgrade on the original mono coloured manlands from Urza's block (especially Spawning Pool)
In the unusual case there are no appropriate cards in exile to target and no player may legally be chosen as a target, the ability is removed from the stack with no effect
A major drawback from Cardhoarder, though, is that bulk cards and commons are always sold at 0.05 TIX, while GoatBots usually sells the same cards at only 0.005, meaning that you can get 10 cards for the price of one Cardhoarder common
You never lack for something to do with your mana since you have so many spells with X in their cost and a few cards that draw you a bunch of cards since they scale off the size of your biggest creature
Casting your second spell each turn lets you goad a creature an opponent controls, forcing them to attack someone other than you
But you might get a big advantage by giving them something useless for something useful