I cant put into words why this is the case, but finding out a commanders color identity halfway down the card because of an ability they have just doesnt feel as fun to me as locking the color identity in the actual mana cost
The back of Card D is blank, so it is not examined below
Imagine this card: Big Man Down Sorcery Target player reveals his or her hand and discards the card in their hand with the highest converted mana cost
The upper 5 are your Monster Zones, where monsters go, while the bottom 5 are your Spell/Trap Zones, where you play and set Spells and Traps
You have a campaign that has a deep Dota lore behind it
Furthermore, when Shadow Mist is sent to the graveyard, it searches the deck for any other Hero monster, finally giving Elemental Heroes a much needed boost in viability