Sand Squid [Mercadian Masques] Giant Scout you may play 1 Tamer

you may play 1 Tamer card from your trash without paying its memory cost

{T}: Return target creature you control to its owner's hand

Cloudreach Cavalry gets +2/+2 and has flying

Set: Outlaws of Thunder Junction Prerelease Promos Type: Legendary Creature — Human Advisor Rarity: Rare Cost: {1}{W}{B} Whenever one or more tokens enter the battlefield under your opponents' control

Myr Welder has all activated abilities of all cards exiled with it

Sand Squid [Mercadian Masques] Giant Scout you may play 1 TamerSet: Mercadian Masques Type: Creature Squid Beast Rarity: Rare Cost: {3}{U} Islandwalk (This creature can't be blocked as long as defending player controls an Island.) You may choose not to untap Sand Squid during your untap step. {T}: Tap target creature. That creature doesn't untap during its controller's untap step for as long as Sand Squid remains tapped.