Slithermuse This 3/3 elemental has an amazing draw ability for a Commander or Team game like 2 Headed Giant
The life it gains is much appreciated, as Thoughtseize and Read the Bones have us paying life more often than usual
Similar cards in the past haven't really broken their Standard formats, and even though Thran Temporal Gateway has some upsides compared to older versions like Quicksilver Amulet, these upsides are likely outweighed by the fact that our current Standard is pretty hostile to artifacts thanks to Abrade and endless sideboard options
Drawing all four is 12 damage
The Watcher in the Water The Watcher in the Water is a high-powered threat and can put down a wall of tentacles that discourage your opponents from attacking you
You can use it in combos that abuse ETB and LTB to win a game, but you can also attack with small creatures, make a lot of Food, and gain a bunch of life