Either at ridiculously low prices, or people who are trying to charge the full amount: tiny pokeballs, with no trademark
White angels are already powerful, but green adds ramp and +1/+1 counters synergies
Myr Retriever: a deterrent if someone wants to block it, and it they do and it dies, you can get one of your much better artifacts out of the graveyard
Step 5: Immediately take the portal again this will bring you back to the 5th floor right by the Team Rocket Grunt
Your Relentless Rats gets stronger the more copies of it you have in play, so if you have six Relentless Rats, each one of them is getting +5/+5, making them a three mana 7/7
These effects can be informally categorized based on classifications of monster effects: Continuous-like Effect: An effect that continuously applies while the Trap Card is face-up on the field