Add {W}{U}{B}{R}{G}.

You can’t cast permanent spells.

{4}, {T}: Add {W}{U}{B}{R}{G}. When you next cast a spell this turn, exile cards from the top of your library until you exile an instant or sorcery card with lesser mana value. Until end of turn, you may cast that card without paying its mana cost. Put each other card exiled this way on the bottom of your library in a random order.

Sacrifice Composite Golem: Add {W}{U}{B}{R}{G}.

When Courier’s Briefcase enters the battlefield, create a 1/1 green and white Citizen creature token.

{T}, Sacrifice Courier’s Briefcase: Add one mana of any color.

{W}{U}{B}{R}{G}, {T}, Sacrifice Courier’s Briefcase: Draw three cards.

{T}: Add {C}.

{5}, {T}: Add {W}{U}{B}{R}{G}.

Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

{T}: Add {W}{U}{B}{R}{G}. This mana can’t be spent to pay generic mana costs.

Whenever you cast a multicolored spell, scry 1. If that spell was all colors, create a 4/4 white Angel creature token with flying and vigilance.

{5}, {T}: Add {W}{U}{B}{R}{G}.

When Kaleidostone enters the battlefield, draw a card.

{5}, {T}, Sacrifice Kaleidostone: Add {W}{U}{B}{R}{G}.

Whenever a Warrior attacks, you may have its controller create a 1/1 white Warrior creature token that’s tapped and attacking.

{W}{U}{B}{R}{G}: Untap all attacking creatures. They gain trample, lifelink, and haste until end of turn. After this phase, there is an additional combat phase. Activate only during combat.

Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack.

Each creature you control has “{T}: Add one mana of any of this creature’s colors. Spend this mana only to activate an ability of a creature. Activate only if this creature has another activated ability.”

{W}{U}{B}{R}{G}, {T}: Mill five cards. Put all creature cards with activated abilities that aren’t mana abilities from among the milled cards into your hand.

Timeless Lotus enters the battlefield tapped.

{T}: Add {W}{U}{B}{R}{G}.