Cackling Witch

, , Discard a card: Target creature gets +X/+0 until end of turn.

Horn of Plenty

Whenever a player casts a spell, they may pay . If the player does, they draw a card at the beginning of the next end step.

Grafted Skullcap

At the beginning of your draw step, draw an additional card.
At the beginning of your end step, discard your hand.

Cackling Fiend

When Cackling Fiend enters the battlefield, each opponent discards a card.