You'll put a time counter on it at the beginning of your upkeep, and once you have at least one you'll be able to Time Travel (or proliferate) them to either of your hearts' content!
Taking stock of Pokmon TCG2, Im beset by the same feeling I had reviewing Sacred Stones: that with a bit better planning, presentation, playtesting, or whatever accounts for the X-factor in a videogame, TCG2 wouldve been a much more enjoyable experience
Search your deck for yp to 2 Trainer cards reveal the, and put these into our hand
The huge influx of mana generated by that pairing then allows us to cast Wargate over and over again, tutoring out silver-bullet answers or more probably, one of many two-card infinite combos to win
Synchro Decks can use "Ancient Fairy Dragon" to destroy the "Malefic" player's Field Spell, thus destroying any "Malefic" monsters, while also gaining 1000 LP