Variables

{user} | lists username
{user.mention} | pings user
{user.name} | same as {user}
{user.id} | lists user id
{user.avatar} | displays user pfp
{user.joined_at} | gives date when user joined guild
{user.created_at} | gives date when user created account
{user.discriminator} | lists user discriminator (deprecated)

{guild.name} | lists guild name
{guild.count} | lists guild member count
{guild.count.format} | lists the member count in ordinal indication
{guild.id} | lists guild id
{guild.created_at} | gives date when guild was created
{guild.boost_count} | lists guild boost count
{guild.booster_count} | lists guild booster count
{guild.boost_count.format} | lists the guild boost count in ordinal indication
{guild.booster_count.format} | lists the guild booster count in ordinal indication
{guild.boost_tier} | lists the guild boost tier
{guild.vanity} | lists the guild vanity (ex: /apply)
{guild.icon} | displays the guild icon 

{invisible} | gives color that matches embed
{botcolor} | gives the main color from the bot