Help with lands

[JustAWalrus]

So I made a BRW deck and i have 2 {dragonskull summit} 2 {isolated chapel} 2 {Sacred Foundry} and 1 {godless shrine} I am running 21 lands, what do I do for basics

[DylanW18]

It depends on the deck. At optimal, you'll just get more Duals/Shocks, but the color ratio will jurisdict the basics you run. If you post the deck, I could help you

[Wally]

Count your mana symbols. Write down (or just remember) your totals of each, including doubles (take note of how many doubles and in what colour, eg {B}{B} for {
sign in blood})

From those totals you can equate a percentage, and take into account your dual lands, and the possibility of casting the double colour cards when you will want them.

[JustAWalrus]

I have the deck as dega agro in standard

[Double-O-Scotch]

Count your mana symbols. Write down (or just remember) your totals of each, including doubles (take note of how many doubles and in what colour, eg {B}{B} for {
sign in blood})

From those totals you can equate a percentage, and take into account your dual lands, and the possibility of casting the double colour cards when you will want them.

There is a feature in "deck builder" that does this for you...

[Kaleo42]

Count your mana symbols. Write down (or just remember) your totals of each, including doubles (take note of how many doubles and in what colour, eg {B}{B} for {
sign in blood})

From those totals you can equate a percentage, and take into account your dual lands, and the possibility of casting the double colour cards when you will want them.

There is a feature in "deck builder" that does this for you...

The last factors to consider when building a mana base are when do you need the mana and do certain colors help you get others.

For example, my borzhov reanimator plays heavily on these factors. {Angel of serenity} is a huge hit to white and there is a fair amount of white aside from that, however i run more {R} and {B} sources. This is because I dont need 3x{W} until later in the game, {faithless looting} in {R} helps me get my other colors, {unburial rites} with a single {B} or {W} lets me cast most my big baddies regardless of lands.

In green and blue this is easier to see in the form of ramp and draw.

[Stromack]

I'd run

4 dragonskull summit
2 black leave cliffs
2-3 blood crypt
2-3 isolated chapel
2 godless shrine
And 3 of each basic land