While Exude Confidence isn't defended by a card with equal or greater [Power], the defending hero can't play or activate instants or defense reactions this combat chain.
Instant - [3 Resource]: Exude Confidence gains +2 [Power]. Activate this ability only while Exude Confidence is attacking.
Near Mint 1st Edition Normal - $6.00
Lightly Played 1st Edition Normal - $5.40
Moderately Played 1st Edition Normal - $4.80
Heavily Played 1st Edition Normal - $4.10
Damaged 1st Edition Normal - $2.40