Even with just a single Drowned Secrets on the battlefield, something like Merfolk Secretkeeper (both the adventure and creature modes) into Callous Dismissal on Merfolk Secretkeeper into Merfolk Secretkeeper again ends up milling 18 cards for a total of six mana, making it a great way to close out the game once our opponent's library starts to dwindle
If you don't need to reanimate Birds, then Kastral comes with other fantastic effects
Collectors should note that so far there has been no indication that the reprint of Chapter 1 will have any 2nd edition indicator or design to show any difference from the first printing
Elspeth, Gideon, and Ajani are good planeswalkers to have among your creature-heavy decks, and good examples are Gideon Jura, Gideon, Ally of Zendikar, Elspeth, Knight-Errant, and Ajani, Adversary of Tyrants
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Every upkeep you can choose to put a charge counter on it, then tap it to put a creature into play with a converted mana cost equal to the number of charge counters