The lack of indestructible on opposing turns leaves you uncomfortably vulnerable to sweepers, but it makes it hard for your opponents to profitably block or interact on your turn
It's an artifact with ", Sacrifice this token: Draw a card.") Whenever you sacrifice a Clue, Martha Jones and up to one other target creature can't be blocked this turn
This is another solid entry in the not-a-Titan and not-a-Gearhulk and not-a-Primordial entry for the format
This immediately shows us that: In order to counter Ancestral Vision through the trigger of Counterbalance, you'd have to reveal a card with mana value=0, for instance, a land
It's important to note also that this mana does not need to be used to cast spells
Illustrated by: Volkan Baa Not Legal Traditional Standard Not Legal Traditional Alchemy Not Legal Traditional Explorer Rulings 2011-09-22 The owner of a token is the player under whose control the token was put onto the battlefield