Terra is a blockchain network built using Cosmos SDK specializing in stablecoin creation.
Rather than use flat or over-collateralized crypto as reserves, each Terra stablecoin is convertible into the networks native token LUNA.
Luna is the token plateform and is used in the issuance of stablecoins, as a price stability machanics as well as for staking and network governance
In order to stablize the value of Terra stable coins with their respective pagged currencies, user can redeem LUNA tokens in exchanges for TerraSDRs and vice versa.
The Terra Protocol tries to achive predictable rewords for network pparticipants in all economics conditional using transaction fees and the rate of LUNA burn as levers to oppose change in unit mining rewords.