mtg card from tempest Magic The Gathering - Dragon (136/264) you may play the exiled cards. Tempest Technique Token MTG -

PLACING YOUR ORDER IS YOUR AGREEMENT TO OUR PRE-ORDER ALLOCATION & WAVE SHIPMENT POLICIES

Saying this fills your quota of one-mana cards isn't true at all

Often these contain a compilation of cards set on the same plane

Notable Cards: Reprints and $$ Counter Blitz features five cards in the $2-5 range, four in the $5-10 range, and four cards at or above $10

For gameplay, most players still sleeve DFCs (or use helper cards) depending on how their group prefers to handle reveals and transforms

So if it gets triggered at your endstep (for example with Silversmote Ghoul), it wont be able to return right away, because it will happen after the beginning of the phase