You can only use each of the following effects of "Assault Lich" once per turn
The Wise Mothman Infinitely flickering The Wise Mothman enables an alternative wincon since your opponents will mill out and it provides an interesting intersection of mill and combat damage to let decks pursue two win conditions
Magic: The Gathering , Magic , Thunder Junction, Innistrad, New Capenna, Kamigawa, Dominaria, The Brothers' War, Phyrexia, Eldraine, Ixalan, Kaladesh, and Khans of Tarkir are property of Wizards of the Coast LLC in the USA and other countries
In Timetwisters defense, Echo of Eons is exiled once you flash it back, so you cant do loops, but its still a very powerful wheel effect for a low mana cost
This can place monsters in the Spell & Trap Zone and then Special Summon them, and you can use it to steal opposing monsters, or in conjunction with Formula Synchron to Synchro Summon on the opponent's turn
You can only use each effect of "Vernusylph of the Awakening Forests" once per turn