Library of Leng [Collectors' Edition] Siren Pirate there is an additional combat

there is an additional combat phase after the first

Set: Eternal Masters Type: Legendary Planeswalker — Jace Rarity: Mythic Cost: {2}{U}{U} +2: Look at the top card of target player's library

which allowed the myr to observe everywhere unhindered

You may put a green creature card from your hand onto the battlefield

{T}: If you both own and control Hanweir Battlements and a creature named Hanweir Garrison

Library of Leng [Collectors' Edition] Siren Pirate there is an additional combatSet: Collectors' Edition Type: Artifact Rarity: Uncommon Cost: {1} You have no maximum hand size. If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.