Tezzeret the Seeker Few planeswalkers offer more utility in an artifact deck than Tezzeret the Seeker
With Jirachi eventually losing Escape Board , this seems to be a perfect replacement

Supported types Containers of values convertible to double, points and other geometries C-style array Pointer to elements with size specifier e.g.: ptr,5 Sequence of containers of point coordinates e.g.: vec_x;vec_y STL: array , vector , deque , list , set Boost.Array: array Boost.CircularBuffer: circular_buffer Boost.Container: vector , static_vector C#: array, List , LinkedList , IList , IEnumerable VB: array, List (containers of values only) user-defined containers (see below) 2D cartesian geometries Boost.Geometry: point , point_xy , box , segment , referring_segment , linestring , polygon , multi_point , multi_linestring , multi_polygon , nsphere Boost.Polygon: point_data , segment_data , rectangle_data , polygon_data , polygon_with_holes_data STL: pair user-defined geometry types (see below) Non-cartesian geometries (spherical_equatorial and geographic) Boost.Geometry: point , box , segment , referring_segment , linestring , polygon , multi_point , multi_linestring , multi_polygon , nsphere Spatial indexes Boost.Geometry: rtree Complex numbers STL: complex Values STL: chrono::duration (incl

If you do, the other player still gets the card with cascade on it, but those cards are usually a lot less powerful than whatever the other cards in that players deck are