Our options are therefore as follows: Azorius v Jund: Will, Scion of Peace & Ikra Shidiqi, the Usurper + Kediss, Emberclaw Familiar Rakdos v Bant: Judith, Carnage Connoisseur & Shanna, Purifying Blade Selesnya v Grixis: Trelasarra, Moon Dancer & Solkanar the Swamp King Boros v Sultai: Firesong and Sunspeaker & Zimone and Dina Golgari v Jeskai: Beledros Witherbloom & The Archimandrite Okay, there should be six, but if you can find an oppositional pair in Dimir and Naya that can both be reasonably called a life gain deck, go for it
Lets take Ice Magic as an example again
Their original vision didnt include the 4 of playset rule as they didnt think players would have that many copies of any particular card
Seal of Cleansing (T1, Ext, S, Block) What difference does one mana make
Special Summon from your Extra Deck, 1 "DoomZ" Xyz Monster or "Jupiter the Power Patron of Destruction", with the same Rank as the Level of that monster you control, by using that monster as material (this is treated as an Xyz Summon), and if you do, equip this card you control to it as an Equip Spell