Equipped creature gets +2/+2 and has flying and lifelink. When equipped creature deals combat damage to a player, unattach Shionoshio, Ocean's Vow, then transform it. Equip {W}{U} Shionoshio can be your commander.
Shoupan Shrine enters tapped. {T}: Add {B} or {R}. {B/R}, {T}, Sacrifice Shoupan Shrine: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.
Whenever you create an Idol token, put a +1/+1 counter on Shrine of Elder Lords. {T}: Add {C}. {3}: Put a +1/+1 counter on Shrine of Elder Lords, then you may have it become a 0/0 Elemental creature with vigilance until end of turn. It's still a land.
{T}: Add {C}. {T}: Choose a color. Add one mana of that color unless you control a permanent of that color. Spend this mana only to cast a permanent spell.
The callous call it an empty gesture, but to the devout it is a holy place all the same.
Frozen Hinterlands enters tapped. {T}: Add {W} or {B}. {1}{W}{B}: Until end of turn, Shrouded Rooftops becomes a 3/3 white and black Illusion creature with with lifelink and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)
{T}: Add {G} or {U}. {T}, Sacrifice Sigil of Creation: Add {G}{U}.
“The forbidden lovers earth and sky drift ever apart, knowing the tantalising dance of the horizon holds promise of reunion.” —Dai Gui, Pillar of Sea and Sky
{T}: Add {B} or {G}. {T}, Sacrifice Sigil of Growth: Add {B}{G}.
“Your ‘advances' are little more than overworking the world around you. Today you may be ahead. But where will you be when it finally breaks under your heel?” —Chief Striking Dawn
Equipped creature has “{T}: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.” Equip {2}
As long as Sigiled Scrollcase is attached to a creature you control, you have no maximum hand size. Whenever equipped creature dies, draw a card. Equip {1}
Silent Ridge enters tapped. {T}: Add {B}. Desertcycling {1}{B}({1}{B}, Discard this card: Search your library for a Desert card, reveal it, and put it into your hand, then shuffle.)