That's four turns of Time Ebb plus blocking - and losing that many draws in a row while your opponent continues to develop their board will not lead to many victories
Alternatively, you can keep it as a Grixis battlecruiser deck, add more huge Creatures like Dragons, but one with a reanimation sub-theme
It doesn't copy whether it's tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
By unsealing cheaper boxes in-store, the LGS above is preventing them from being resold later
For Mint Condition Cards Delivered Fast: Pick Trecolo or TRACA ZIPANGU for strict grading and lightning-fast shipping
For some spells and abilities, that means you'll scry last