Herald of Protection (Yellow) Rainbow Foil Promo DYN a player would only do

a player would only do this if they did not have enough legally playable cards to make a 30 card minimum deck

Stormclaw Ursine 137/298 Riftbound

Summon beloved Kithkin

if you've played an attack action card and a non-attack action card this turn

When this is played

Herald of Protection (Yellow) Rainbow Foil Promo DYN a player would only doIf Herald of Protection hits, put it into your hero's soul and create a Spectral Shield token. (It's an Illusionist aura with "If your hero would be dealt damage, instead destroy Spectral Shield and prevent 1 damage that source would deal.") Phantasm (If Herald of Protection is defended by a non Illusionist attack action card with 6 or more [Power], destroy Herald of Protection and close the combat chain.)