Field of Souls

Whenever an enchantment you control is put into a graveyard from the battlefield, create a 1/1 white Bird creature token with flying.

Whenever a creature is put into your graveyard from the battlefield, you may pay . If you do, return that card to your hand.

Whenever a creature token leaves the battlefield, put a +1/+1 counter on this creature.

, Remove a +1/+1 counter from this creature: Create two 1/1 white Spirit creature tokens with flying.

Play with your hand revealed.

If you would draw a card, reveal the top card of your library instead. If it's a creature card, put it into your graveyard. Otherwise, draw a card.

Whenever a creature is put into your graveyard from the battlefield, return it to your hand.

Whenever another creature you control enters, this creature gets +1/+1 until end of turn.

, Exile a creature card from your graveyard: Create a 1/1 white Spirit creature token with flying.

This creature enters with X +1/+1 counters on it, where X is the number of other creatures on the battlefield.

, Remove a +1/+1 counter from this creature: Create a 1/1 white Spirit creature token with flying.