For the international release, these crosses were removed
The most expensive trading card ever sold
You can also play dual-color decks if you use a dual-color Leader, which lets you mix the strategies (for example, Red/Green could blend aggro and re-stand combos, Blue/Purple could be a control deck with ramp elements, etc.)
While casting a spell without paying its mana cost using the last ability, you can't pay alternative costs, but you may choose to pay any optional additional costs the spell may have (such as a kicker cost)
Some sets, like Unglued and Unhinged took it a step further and were the first ones to supply full-art lands for the five basics, something thats become common practice in regular MTG sets
It only pumps for a third of the power of the OG Overrun, but it also requires you to do half the damage to kill your opponent