Magic: The Gathering is one of the most influential games of all time
Ultimate Offering is a Continuous Trap that allows players extra Summons from the hand by paying Life Points
So, the creators of the Pokmon cards have successfully introduced the VMAX and VSTAR generation, experimented with "Amazing" Pokmon rainbow cards, and used many other solutions to keep the game as exciting as it was at the beginning of its journey
One your mana was doubled there were any number of ways to start generating massive card advantage and take over the game in short order, with Wrath of God serving as the four-drop to lead into the Wake and Mirari itself, which was usually the way things ended
Devastating Onslaught The only thing that could make this card better is if it said "except they aren't legendary." I imagine making, like, four copies of Atraxa, Grand Unifier and attacking with them would be a little overkill, but keep in mind you not only have to control a seven-mana Atraxa at that point, but also spend nine mana on the Onslaught