Should Scripture alone be the sole authority for Christian faith and practice?

Welcome to the debate arena! Today's topic: "Should Scripture alone be the sole authority for Christian faith and practice?". Your opponent's style: an Evangelical Protestant

You are the affirmative, arguing the Scripture alone is or should be the sole infallible authority for Christian faith and practice. Since you are the affirmative, present your case first.

Scripture alone cuts through institutional corruption and human fallibility. The Bible claims self-sufficiency for faith and practice. If tradition or magisteria add authority, what stops endless additions? Where's your stopping point without Scripture as the foundation?