While every play booster pack has a Mystical Archive card, less than 3% will have one at Mythic rarity
Otherwise, your control opponent will overwhelm you with cards and abilities, and pretty soon, youll be the one trying to answer threats, which is never a good sign
To make it happen, we will need a) two creatures we control continuously since the beginning of our current turn, one of which whould be fatter than 2, and b) excellent knowledge of the rules
You can cast it for its Warp cost of (2)(R) to get an immediate 4-damage Flying and Haste swing and a 1-damage ping to clear small blockers like Deep-Cavern Bat, then let it retreat into exile at the end step
You can then reveal a Ninja with Ninjutsu from your hand, pay its Ninjutsu mana cost, return the unblocked attacking creature to your hand, and replace it with the Ninja entering the battlefield tapped and attacking (those 0/1 attackers might be a bit too obvious, now)
- Expansion: SWSH Black Star Promos SSP