Obeka is the best effect on this list because it can be used time and time again, although only effectively on your own turn
Since the card only sees play in 4.45k decks right now, itll likely catch some opponents off-guard, too
This triggered the Great Mending, healing the planes and Dominaria of the time rifts, but forever diminishing the power of all current and future planeswalkers and preventing them from bringing creatures without a spark along when they planeswalk
Any damage-based removal spells you sling like Earthquake won't be prevented
'Charges' means charges and expenses paid or payable by the Company in respect of a Lot as set out in these Conditions, including legal expenses, packing or shipping costs, taxes, levies, removal and storage charges and interest, plus any GST payable
I see it being much more widely used as a card in the main deck, however