Special Summon them, but their effects are negated, then, immediately after this effect resolves, Synchro Summon 1 "Mathmech" Synchro Monster using only those monsters, and shuffle the materials into the Deck instead of sending them to the GY
Beyond that, Niv-Mizzet, Parun is just the best Niv around, no doubt about it
Like many glimmers in Disney Lorcana, this Elsa is Dreamborn, meaning shes an original Disney Lorcana TCG design appearing for the very first time
Scroll Stone Dragon = Winged Dragon Guardian Of The Fortress #1 + Beta The Magnet Wa Stone Dragon (2000/2300) = Muka-Muka + Y
The best deck is Tomato Control, a control deck that utilizes Mystic Tomato to hold board presence and allow you to easily access Witch of the Black Forest, and then Jinzo after that
Boundless Elves Beast Whisperer | Illustration by Matt Stewart Creature (26) Imaryll, Elfhame Elite Elvish Archdruid Beast Whisperer Dwynen's Elite x2 Elvish Rejuvenator x2 Elvish Skysweeper Elvish Visionary x3 End-Raze Forerunners Immaculate Magistrate Joraga Visionary Llanowar Elves x3 Llanowar Tribe x2 Sylvan Messenger x2 Taunting Elf Thorn Lieutenant Thornweald Archer x2 Howling Golem Instant (6) Broken Wings Elven Ambush Invigorate x2 Ram Through Wirewood Pride Sorcery (3) Enchantment (1) Land (24) Forest x24 The mono-green option is a hybrid ramp/elf deck that fits the common EDH elfball strategy well enough