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.
NM-Mint 1st Edition Normal - $6.80
Lightly Played 1st Edition Normal - $6.10
Moderately Played 1st Edition Normal - $5.50
Heavily Played 1st Edition Normal - $4.80
Damaged 1st Edition Normal - $3.40