With morph, it was easy to lose your three-mana investment to a simple Shock (Shock is reprinted in MKM, but will require three mana to kill a disguised creature)
Littjara, Kaldheim Among the ten realms of Kaldheim, Littjara is by far the most mysterious and unknown
This would mean that virtually all collected Hourglasses would be useless, as they could not be used in upcoming booster packs
Adelbert Steiner Cecil, Dark Knight Cecil, Redeemed Paladin Dion, Bahamut's Dominant Freya Crescent Garland, Knight of Cornelia Judge Magister Gabranth Kain, Traitorous Dragoon Seifer Almasy Squall, SeeD Mercenary Summon: Brynhildr Summon: Knights of Round Summon: Primal Odin
The cycling ability is basically there to give the designers an excuse to use colored pips on the card, as a quick, clever visual reminder of which colors they're associated with