If I can, what color cards can I trash with this cards effect
We still have the other colors, plus great multi-colored cards, artifacts, and even some strong new lands
add up the total ATK of all other face-up Attack Position monsters you currently control, then during the Battle Phase of this turn only, the monster gains that much ATK, but cannot inflict Battle Damage to your opponent, also other face-up Attack Position monsters cannot attack
It is better to enhance one theme of card as specialization
Unless, of course, you're relying on cards that let you play lands from elsewhere
In baseball extra innings, the game is over when one team has the lead at the end of an inning