it gains you life, trades with almost any creature on the board, and leaves a literal army behind for your opponent to deal with
Arden Angel happens to work well as it has you pick a random number from one to four in order to trigger its effect, which is easily replicated with a four-sided die
Jumpstart boosters usually sell for around $5-$7 and contain 20 cards: one rare from the theme (sometimes two), some uncommons, commons, and 8-9 basic lands
This was a problem though for things like MTG Changelings, as they then needed an additional bit of rules text to explain that they could attack, despite having the Wall creature type
At best, this is awkward, and at worst it adds needless complexity to maintaining the state of the game
Coat of Arms overrun: drop the anthem on a wide board with menace or fear from Piper/Cover of Darkness and attack for lethal in one swing