In other TCG-related news, check out the Bibarel card from VSTAR Universe [S12a]
Cardhound has written about related topics before: assessing card condition is an important aspect of our Guide on Grading, and of course, card condition is a very important factor in Understanding Vintage Baseball Card Values
For example, in the case of barricade, the recovery function can be used to build a barrier to block the enemy's approach every round
You can ignore freerunning and, I don't know, take the elevator or something, paying a spell's mana cost as normal
You can cast a creature card that has been targeted by Havengul Lich from the graveyard, but unless it has flash, you can only do so if it's your main phase, the stack is empty, and you have priority