Whenever Emperor's Vanguard deals combat damage to a player, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)
![Emperor's Vanguard [Ixalan]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/273005fe-9fe8-5c92-ac8b-f44fb7475a9d_d4d7aa7b-ea15-4221-900d-c4557b6a0e51.jpg?v=1698567136&width=1445)