When The First Doctor enters the battlefield, search your library and/or graveyard for a card named TARDIS, reveal it, and put it into your hand
Typically, MTG inner sleeves are around 64x89mm, allowing for a 5mm gap
which even in Bracket 2 is probably too late to matter
In the TCG, using a Buddy-Buddy Poffin card will allow you to search your deck for up to two Basic Pokemon who have 70 HP or less before putting them directly onto your bench
Other than the occasional judge promo, a card like Imperial Seal that's worth hundreds of dollars hasn't been added as a rare or mythic in a Masters set
Buy CGC 9.5s cheap (recent sales around 500) and either hold and wait for CGC to rise OR crack the case and submit to PSA fishing for a 10