Dog Assassin

Flanking, Haste, Flash, First Strike, Swampwalk, Vigilance
Cumulative upkeep {p/c}
When this creature flanks it gains +5/+0 when it
doesn't flank it gets +0/+3
For each age counter on this card its assassinate
costs {p/b} less and it deals 1 more damage to players
This creature decides what blocks it
{3}{p/b}{p/b}{p/b}{p/b}{p/b}{t}, gain Death Touch and +3/+0
until end of turn