Frontier Assassin

Splitsecond. Send 1 opponent creature from the field to GY with no other effects. The owner of that creature lose LP equal to its Mana value (if its 0: its 2 instead).
Chain Finnisher - You can send up to 2 Tokens from the field to GY. You can do Explorer - Look at the top card of your Libary, if its a creature reveal it: put a +1/+1 counter on a creature you control, if its a Land reveal it; put it in your hand, then if not a Land; put it on top or bottom of your Libary.