pokemon mega evolution enhanced booster box new sealed TCG: Display – Toy Mandala Mega Evolve Your Strength to the Next Stage Mega Evolution Enhanced Booster Box

A more expensive but more powerful version is Yawgmoth's Bargain, legal only in Vintage

As this is a quick effect, this is exactly what Mayakashi ordered, as now you have a way to trigger their Summon from GY effects during the opponents turn

What are some other examples of this in games or other product categories

This Agreement governs the relationship between you, as a bidder and/or buyer, on the one hand, and Landry Pop Auctions and sellers, on the other hand

Weakness: Metal Resistance: none Retreat: 3 Rillaboom VMAX - Grass - 330 HP Pokmon - VMAX - Evolves from Rillaboom V C Scratch 50 GGGC Max Beating 130+ You may discard up to 3 [G] Energy from this Pokmon

With a few exceptions like Infinite Impermanence and Dominus Impulse