Firstly, those planning to sell their Korean cards should take note that KTCG cards dont fetch anywhere near as high a value as their English or Japanese counterparts do
Trample (If this creature would assign enough damage to its blockers to destroy them, you may have it assign the rest of its damage to defending player or planeswalker.) 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
This kind of interaction has forced Wizards to ban Flash in both Legacy and Commander
That level of value would probably easily land it in plenty of cEDH decks and also would land it on my list
PSA Grade 9 means the card is in near perfect condition, but could have "a very slight wax stain on reverse, a minor printing imperfection or slightly off-white borders." A PSA Grade 10 card is a virtually perfect card, and attributes include "four perfectly sharp corners, sharp focus and full original gloss"