If you want to focus on countering Floowandereeze, Droll is better, but if you also consider Despia, I think Effect Veiler is better
In fact, Erebus itself has its own graveyard effect by discarding a Monarch spell/trap you can return one Monarch from your graveyard to your hand, allowing you to use those powerful on-summon Monarch effects all over again
When your opponent activates a Spell/Trap Card or effect (Quick Effect): You can detach 2 materials from this card
However, in this variation, the cards are shuffled along the direction of the long edges, instead of, and not parallel to, the short ones
You can obtain the Wailord (3-Diamonds rarity) card by opening Mega Rising: Mega Gyarados from Mega Rising set
a storm of lightning bolts for Jolteon, the moonlit city streets for Umbreon, etc