My big three principles for good beginner commanders are that you want less text, fewer colors, and more typal support
Blood Moon is a three mana Red Enchantment that turns every nonbasic Land into a Mountain
To me theyre just a cool piece of history of a game I enjoy And as to the cards you posted, I find the layout super wonky, but I love it
banish both this card from the field and that target, and if you do, Special Summon 1 Synchro Monster from your Extra Deck whose Level equals the total Levels those 2 monsters had
Lunalight Liger Dancer X DARK Level 12 [ Beast-WarriorFusionEffect ] ATK 3800 DEF 3500 "Lunalight Leo Dancer" + 3 "Lunalight" monsters Must be Fusion Summoned with the above Fusion Materials
That said, there are two matchups where Solemnity really shines and does something other cards can't do