You can play it when theres one opposing creature, and then the creature will die at the start of your opponents turn
Heck, Im using Mirkwood Bats in about 12 decks right now, between Food decks, Treasure decks, aristocrat decks, and even Mardu token decks like Zurgo and Caesar
Amber is an ink colour that favours getting more bodies on the board and this card is no exception as its ability gives the player two lore every time they ready it, as long as they have two or more characters in play
Magic Final Fantasy card list & price guide
Sure, Ravenous Chupacabra is now a better version of Nekrataal, and other cards may have similarly clean upgrades, but Id still play these not-quite optimized ilk
The doublers (multiply everything) Rhox Faithmender ($1.68), Boon Reflection ($12.10), and Alhammarrets Archive ($10.55) all double the life you gain and theyre multiplicative , so two doublers means 4 every trigger