The mode is called "Pack Rush" and while it initially debuted at Disney Lorcana TCG Challenge events this summer, it is now being detailed and explained, so anyone can play it at home
With Ivy, you generally build it as a very different Voltron-style deck, casting a bunch of enchantments and single-target spells and turning them into two-for-ones by making sure you target someone other than Ivy
Another copy of Coruscation Mage means you could end up with four whole copies of that effect on the battlefield, shooting off 4 damage for each noncreature spell you cast
Sakashimas Student becomes a copy of a creature, Ink-Eyes will steal a creature from your opponents graveyard, and Fallen Shinobi can steal spells from the top of your opponents library
Here time counters are seen on Suspended cards, Vanishing cards, and as a generic counter for cards like The War DoctorThe War Doctor, Rotating FireplaceRotating Fireplace, and Trenzalore ClocktowerTrenzalore Clocktower