Whenever you cast a multicolored spell, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") {X}{X}{X}, {T}: Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

Fallaji Wayfarer is all colors. This ability doesn't affect its color identity. (It can be in any deck whose commander's color identity includes green.) Multicolored spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a multicolored spell pays for {1} or one mana of a color that creature is.)

Flash You may cast legendary spells and artifact spells as though they had flash. If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Hexproof from monocolored Whenever you cast a multicolored spell, create a 4/4 red and white Golem artifact creature token.

Whenever you cast a multicolored spell, create a 1/1 white Human creature token.

Defender {T}: Lobber Crew deals 1 damage to each opponent. Whenever you cast a multicolored spell, untap Lobber Crew.

(Gain the next level as a sorcery to add its ability.) Legendary creatures you control enter the battlefield with an additional +1/+1 counter on them. {R}{G}: Level 2 Legendary spells you cast cost {R}{G} less to cast. This effect reduces only the amount of colored mana you pay. {3}{R}{G}: Level 3 Whenever you cast a legendary spell, exile the top two cards of your library. You may play them this turn.

Whenever you cast a multicolored spell, Mana Cannons deals X damage to any target, where X is the number of colors that spell is.

{T}: Add {C}. {1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast legendary spells.