When Elena enters, return target non-Assassin historic card from your graveyard to your hand. (Artifacts, legendaries, and Sagas are historic.)Whenever you cast a historic spell, put a +1/+1 counter on Elena.
Each other nontoken creature you control enters with an additional +1/+1 counter on it.,: Proliferate X times, where X is the number of nontoken creatures you control that entered this turn. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)Noncreature spells you cast cost less to cast.As long as you've cast two or more noncreature spells this turn, Lyse Hext has double strike.
: Add one mana of any type that a land you control could produce. If this creature has a +1/+1 counter on it, add three mana of that type instead.: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)When this creature enters, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control.
Whenever you cast a white spell, put a +1/+1 counter on each legendary creature you control. They gain vigilance until end of turn.Whenever you cast a black spell, put a +1/+1 counter on each legendary creature you control. They gain menace until end of turn.