• Spectrum has been dethroned for Teamwork's based decks. Also Unified Strike which is the oposite but final effects are very similar.

• Cost is too expensive or you need to tackle other urgent stuff first? tuck him under your Avengers Compound (your hero needs to be an avenger).

Other cards to benefit from his stats:

• "You Got This!" - discard for a final +3 & ready to your hero
• Go Down Swinging - discard for a final 4-dmg burst (ignores retaliation)
• Noble Sacrifice - discard for healing of 4 and extra tough on your hero
• Save the Day - discard for a final 4 thw without consequences