T:Mode$ DamageDone | ValidSource$ Card.Self | ValidTarget$ Player | CombatDamage$ True | Execute$ TrigExplore | TriggerZones$ Battlefield | TriggerController$ TriggeredSourceController | TriggerDescription$ Whenever CARDNAME 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 on top or into your graveyard.)
SVar:TrigExplore:DB$ Explore | SpellDescription$ 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 on top or into your graveyard.
Oracle: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 on top or into your graveyard.)
