The most common way is the suspend mechanic, like on Search for Tomorrow or Sol Talisman, which lets you exile a card from your hand, put some time counters on it, and then cast the card for free when those counters are gone
What If You Include Digital-Only Cards
SE Secret Rare Spell Reproduction X SPELL Send 2 Spells from your hand to the GY, then target 1 Spell in your GY
that Logan Paul had paid $150,000 for a single Charizard card, the one he wore around his neck before fighting Floyd Mayweatherhe thought of his childhood
If a card that has mutate also has flash, like Pouncing Shoreshark, you can flash it in for its mutate cost since its an alternate casting cost rather than an activated ability
Pokmon Trading Card Game took the core concepts of the mainstream Pokmon games (at that time, Pokmon Blue and Pokmon Red ) and gave them the ol switcheroo