You may play any number of cards that you've opened or drafted: there is no 4-of restriction in Limited play , so you can play as many of a single card as you have
Though players also have to discard a card to get Sparkhunter on the table, its ability to drain the reserves of powerful Planeswalkers could make this a major card of the set
While Clownblade variants needs LP to play (aka LP matter), given the drawback of Trick Clown, but a deck like Nekroz generally plays by "if I have 1 LP I'm alive", given triple Valkyrus
Wednesday Attribute Slash Block icon 4 Effect [Activate: Main] You may trash this Character: Give up to 1 of your opponent's 0 cost Characters 3000 power during this turn
"Jim Hawkins, Honorable Pirate" is also ideal at getting Pirate characters into play, as he can look at the top four cards of the deck and put any Pirate card into the player's hand
These mechanics usually also help mitigate flooding (the dreadful experience of drawing too many lands), but there is nothing like that in Edge of Eternities