Boseiju, Who Shelters All enters the battlefield tapped. {T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

{T}: Add {C}. {1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.

({T}: Add {U}.)

Jwar Isle Refuge enters the battlefield tapped. When Jwar Isle Refuge enters the battlefield, you gain 1 life. {T}: Add {U} or {B}.

({T}: Add {R}.)

If a spell or ability an opponent controls causes you to discard a card, you may reveal that card and put it on top of your library instead of putting it anywhere else. {T}: Add {C}.

You have no maximum hand size. {T}: Add {C}.

{T}: Add {R}. Channel — {3}{R}, Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.

Swiftwater Cliffs enters the battlefield tapped. When Swiftwater Cliffs enters the battlefield, you gain 1 life. {T}: Add {U} or {R}.

Temple of Epiphany enters the battlefield tapped. When Temple of Epiphany enters the battlefield, scry 1. {T}: Add {U} or {R}.

Each land is a Swamp in addition to its other land types.

Lightning Storm deals X damage to any target, where X is 3 plus the number of charge counters on Lightning Storm. Discard a land card: Put two charge counters on Lightning Storm. You may choose a new target for it. Any player may activate this ability but only if Lightning Storm is on the stack.

Reveal cards from the top of your library until you reveal an artifact card. Put that card onto the battlefield and the rest on the bottom of your library in a random order. Madcap Experiment deals damage to you equal to the number of cards revealed this way.

Your life total can't change. (You can't gain or lose life. You can't pay any amount of life except 0.)

Create a 1/1 black and green Worm creature token for each land card in your graveyard. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)