Ball Lightning [Fifth Edition] Magic 2011 Tokens "The crucible yields what you

"The crucible yields what you have forged in your mind

where X is the number of lands you control at that time

Set: Betrayers of Kamigawa Type: Enchantment Rarity: Rare Cost: {2}{G} Whenever a land enters the battlefield

Set: Ninth Edition Type: Artifact — Equipment Rarity: Uncommon Cost: {2} Equipped creature gets +2/+2

If a player does

Ball Lightning [Fifth Edition] Magic 2011 Tokens "The crucible yields what youSet: Fifth Edition Type: Creature Elemental Rarity: Rare Cost: {R}{R}{R} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) Haste (This creature can attack and {T} as soon as it comes under your control.) At the beginning of the end step, sacrifice Ball Lightning.